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2026
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Elion Shala, Jens O. Brunner, J?rg J. Vehreschild, Axel R. Heller und Christina C. Bartenschlager
Addressing missing values and fragmented data to improve core and management processes in hospitals: a federated machine learning approach
Flexible Services and Manufacturing Journal , (im Druck)
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2025
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Kristina Bayer und Robert Klein
A matheuristic for complex pricing problems: an application to rentable resources
Computers & Operations Research 181, 107083 (2025)
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Fabian Anzenhofer, David Fleckenstein, Robert Klein und Claudius Steinhardt
Analyzing the impact of demand management in rural shared mobility-on-demand systems
OR Spectrum 47, 1267-1335 (2025)
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David Fleckenstein, Robert Klein, Vienna Klein und Claudius Steinhardt
Explaining the performance impact of opportunity costs approximation in integrated demand management and vehicle routing
EURO Journal on Transportation and Logistics 14, 100166 (2025)
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Julia Heger und Robert Klein
Group-constrained assortment optimization under the multinomial logit model
Journal of Revenue and Pricing Management 24, 111-142 (2025)
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David Fleckenstein, Robert Klein, Vienna Klein und Claudius Steinhardt
On the concept of opportunity cost in integrated demand management and vehicle routing
Transportation Science 59, 125-142 (2025)
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Fabian Anzenhofer, Simon Schmidbaur, Robert Klein und Claudius Steinhardt
The potential of governmental regulation on shared mobility-on-demand systems
Transportation Research Part A: Policy and Practice 192, 104360 (2025)
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2024
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Julia Heger, Aleksey Min und Rudi Zagst
Analyzing credit spread changes using explainable artificial intelligence
International Review of Financial Analysis 94, 103315 (2024)
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Julia Heger und Robert Klein
Assortment optimization: a systematic literature review
OR Spectrum 46, 1099-1161 (2024)
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Jan Fabian Ehmke, Robert Klein, Claudius Steinhardt und Arne Strauss
Data-driven demand and supply management for online-to-offline logistic services [Editorial]
OR Spectrum 46, 237-240 (2024)
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Yevhen Havrylenko und Julia Heger
Detection of interacting variables for generalized linear models via neural networks
European Actuarial Journal 14, 551-580 (2024)
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Lukas Janinhoff, Robert Klein und Daniel Scholz
Multitrip vehicle routing with delivery options: a data-driven application to the parcel industry
OR Spectrum 46, 241-294 (2024)
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Lukas Janinhoff, Robert Klein, Daniela Sailer und Jim Morten Schoppa
Out-of-home delivery in last-mile logistics: a review
Computers & Operations Research 168, 106686 (2024)
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2023
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Vienna Klein und Claudius Steinhardt
Dynamic demand management and online tour planning for same-day delivery
European Journal of Operational Research 307, 860-886 (2023)
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Sebastian Spindler, Claudius Steinhardt und Robert Klein
Exact solution approaches for order acceptance and scheduling decisions in m-machine open shops
Computers & Industrial Engineering 176, 108952 (2023)
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David Fleckenstein, Robert Klein und Claudius Steinhardt
Recent advances in integrating demand management and vehicle routing: a methodological review
European Journal of Operational Research 306, 499-518 (2023)
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2022
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Fabian Anzenhofer und Robert Klein
On-Demand-Plattformen für den ?ffentlichen Personennahverkehr
WiSt - Wirtschaftswissenschaftliches Studium 51, 10-17 (2022)
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2021
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Georg Bechler, Claudius Steinhardt und Jochen Mackert
On the linear integration of attraction choice models in business optimization problems
SN Operations Research Forum 2, 12 (2021)
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Amin Nazifi, Katja Gelbrich, Yany Grégoire, Sebastian Koch, Dahlia El-Manstrly und Jochen Wirtz
Proactive handling of flight overbooking: how to reduce negative eWOM and the costs of bumping customers
Journal of Service Research 24, 206-225 (2021)
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Georg Bechler, Claudius Steinhardt, Jochen Mackert und Robert Klein
Product line optimization in the presence of preferences for compromise alternatives
European Journal of Operational Research 288, 902-917 (2021)
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2020
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Robert Klein, Sebastian Koch, Claudius Steinhardt und Arne K. Strauss
A review of revenue management: recent generalizations and advances in industry applications
European Journal of Operational Research 284, 397-412 (2020)
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Sebastian Koch und Robert Klein
Route-based approximate dynamic programming for dynamic pricing in attended home delivery
European Journal of Operational Research 287, 633-652 (2020)
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2019
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Jochen Mackert
Choice-based dynamic time slot management in attended home delivery
Computers & Industrial Engineering 129, 333-345 (2019)
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Robert Klein, Michael Neugebauer, Dimitri Ratkovitch und Claudius Steinhardt
Differentiated time slot pricing under routing considerations in attended home delivery
Transportation Science 53, 236-255 (2019)
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Leonie Hutter, Florian Jaehn und Simone Neumann
Influencing factors on airplane boarding times
Omega 87, 177-190 (2019)
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Jochen Mackert, Claudius Steinhardt und Robert Klein
Integrating customer choice in differentiated slotting for last-mile logistics
Logistics Research 12, 5 (2019)
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Robert Klein, Jochen Mackert und Claudius Steinhardt
Nachfragesteuerung im Online-Lebensmittelhandel
WiSt - Wirtschaftschaftswissenschaftliches Studium 48, 12-18 (2019)
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Rouven Schur, Jochen G?nsch und Michael Hassler
Time-consistent, risk-averse dynamic pricing
European Journal of Operational Research 277, 587-603 (2019)
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2018
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Robert Klein, Jochen Mackert, Michael Neugebauer und Claudius Steinhardt
A model-based approximation of opportunity cost for dynamic pricing in attended home delivery
OR Spectrum 40, 969-996 (2018)
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Arne K. Strauss, Robert Klein und Claudius Steinhardt
A review of choice-based revenue management: theory and methods
European Journal of Operational Research 271, 375-387 (2018)
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Kristina Bayer, Sebastian Koch und Robert Klein
Monte Carlo Tree Search — ein L?sungsverfahren für dynamische Optimierungsprobleme an der Schnittstelle von Operations Research und Informatik
WiSt - Wirtschaftswissenschaftliches Studium 47, 11-18 (2018)
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Jochen G?nsch, Michael Hassler und Rouven Schur
Optimizing conditional value-at-risk in dynamic pricing
OR Spectrum 40, 711-750 (2018)
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2017
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Oliver Faust, Jochen G?nsch und Robert Klein
Demand-oriented integrated scheduling for point-to-point airlines
Transportation Science 51, 196-213 (2017)
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Sebastian Koch, Jochen G?nsch und Claudius Steinhardt
Dynamic programming decomposition for choice-based revenue management with flexible products
Transportation Science 51, 1046-1062 (2017)
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Michael Hassler
Heuristic decision rules for short-term trading of renewable energy with co-located energy storage
Computers and Operations Research 83, 199-213 (2017)
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Sebastian Koch
Least squares approximate policy iteration for learning bid prices in choice-based revenue management
Computers and Operations Research 77, 240-253 (2017)
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2016
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Dominic Bühler, Robert Klein und Michael Neugebauer
Model-based delivery cost approximation in attended home services
Computers & Industrial Engineering 98, 78-90 (2016)
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Stefan Mayer und Claudius Steinhardt
Optimal product line pricing in the presence of budget-constrained consumers
European Journal of Operational Research 248, 219-233 (2016)
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Sebastian Koch, Jochen G?nsch, Michael Hassler und Robert Klein
Practical decision rules for risk-averse revenue management using simulation-based optimization
Journal of Revenue and Pricing Management 15, 468-487 (2016)
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Jochen G?nsch und Michael Hassler
Sell or store? An ADP approach to marketing renewable energy
OR Spectrum 38, 633-660 (2016)
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2015
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Jochen G?nsch
A note on a model to evaluate acquisition price and quantity of used products for remanufacturing
International Journal of Production Economics 169, 277-284 (2015)
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Robert Klein und Johannes Kolb
Maximizing customer equity subject to capacity constraints
Omega 55, 111-125 (2015)
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Jochen G?nsch und Claudius Steinhardt
On the incorporation of upgrades into airline network revenue management
Review of Managerial Science 9, 635-660 (2015)
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2014
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Jochen G?nsch
Buying used products for remanufacturing: negotiating or posted pricing
Journal of Business Economics 84, 715-747 (2014)
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Alexander Baur, Robert Klein und Claudius Steinhardt
Model-based decision support for optimal brochure pricing: applying advanced analytics in the tour operating industry
OR Spectrum 36, 557-584 (2014)
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Jochen G?nsch, Sebastian Koch und Claudius Steinhardt
Revenue management with flexible products: the value of flexibility and its incorporation into DLP-based approaches
International Journal of Production Economics 153, 280-294 (2014)
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Andreas Deckert und Robert Klein
Simulation-based optimization of an agent-based simulation
NETNOMICS: Economic Research and Electronic Networking 15, 33-56 (2014)
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2013
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Stefan Mayer, Robert Klein und Stephanie Seiermann
A simulation-based approach to price optimisation of the mixed bundling problem with capacity constraints
International Journal of Production Economics 145, 584-598 (2013)
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Jochen G?nsch, Sebastian Koch und Claudius Steinhardt
An EMSR-based approach for revenue management with integrated upgrade decisions
Computers & Operations Research 40, 2532-2542 (2013)
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Jochen G?nsch, Robert Klein, Michael Neugebauer und Claudius Steinhardt
Dynamic pricing with strategic customers
Journal of Business Economics 83, 505-549 (2013)
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Jochen G?nsch und Claudius Steinhardt
Using dynamic programming decomposition for revenue management with opaque products
Business Research 6, 94-115 (2013)
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2012
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Claudius Steinhardt und Jochen G?nsch
Integrated revenue management approaches for capacity control with planned upgrades
European Journal of Operational Research 223, 380-391 (2012)
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Wolfgang Burkart, Robert Klein und Stefan Mayer
Product line pricing for services with capacity constraints and dynamic substitution
European Journal of Operational Research 219, 347-359 (2012)
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Anita Petrick, Claudius Steinhardt, Jochen G?nsch und Robert Klein
Using flexible products to cope with demand uncertainty in revenue management
OR Spectrum 34, 215-242 (2012)
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2011
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Hans Ulrich Buhl, Robert Klein, Johannes Kolb und Andrea Landherr
CR2M — an approach for capacity control considering long-term effects on the value of a customer for the company
Journal of Management Control 22, 187-204 (2011)
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Robert Klein, Michael Neugebauer und Armin Scholl
Software zur Entscheidungsanalyse — eine Marktübersicht
WiSt - Wirtschaftswissenschaftliches Studium 40, 513-519 (2011)
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2010
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Andreas Deckert und Robert Klein
Agentenbasierte Simulation zur Analyse und L?sung betriebswirtschaftlicher Entscheidungsprobleme
Journal für Betriebswirtschaft 60, 89-125 (2010)
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Anita Petrick, Jochen G?nsch, Claudius Steinhardt und Robert Klein
Dynamic control mechanisms for revenue management with flexible products
Computers & Operations Research 37, 2027-2039 (2010)
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2009
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Jochen G?nsch, Robert Klein und Claudius Steinhardt
Dynamic pricing – state-of-the-art
Zeitschrift für Betriebswirtschaft 79, 1-40 (2009)
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2008
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Jochen G?nsch, Robert Klein und Claudius Steinhardt
Discrete Choice Modelling (Teil I)
WiSt - Wirtschaftswissenschaftliches Studium 37, 356-362 (2008)
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Jochen G?nsch, Robert Klein und Claudius Steinhardt
Discrete Choice Modelling (Teil II)
WiSt - Wirtschaftswissenschaftliches Studium 37, 412-418 (2008)
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2007
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Robert Klein
Network capacity control using self-adjusting bid-prices
OR Spectrum 29, 39-60 (2007)
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Alf Kimms und Robert Klein
Revenue management [Editorial]
OR Spectrum 29, 1-3 (2007)
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2005
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Wolfgang Domschke, Robert Klein und Anita Petrick
Revenue Management - Instrumente zur Erl?smaximierung im Luftverkehr
Forschungsmagazin der TU Darmstadt 2005, 46-50 (2005)
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2004
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Wolfgang Domschke und Robert Klein
Bestimmung von Opportunit?tskosten am Beispiel des Produktionscontrolling
Zeitschrift für Planung & Unternehmenssteuerung 15, 275-294 (2004)
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Armin Scholl, Robert Klein und Lutz H?selbarth
Planung im Spannungsfeld zwischen Informationsdynamik und zeitlichen Interdependenzen
WiSt - Wirtschaftswissenschaftliches Studium 33, 153-160 (2004)
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2003
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Robert Klein und Anita Petrick
Revenue Management - eine weitere Erfolgsstory des Operations Research
GOR News 2003, 5-9 (2003)
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2001
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Robert Klein
Revenue Management: quantitative Methoden zur Erl?smaximierung in der Dienstleistungsproduktion
Betriebswirtschaftliche Forschung und Praxis 53, 245-259 (2001)
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2000
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Robert Klein
Bidirectional planning: improving priority rule-based heuristics for scheduling resource-constrained projects
European Journal of Operational Research 127, 619-638 (2000)
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Robert Klein und Armin Scholl
PROGRESS: Optimally solving the generalized resource-constrained project scheduling problem
Mathematical Methods of Operations Research (ZOR) 52, 467-488 (2000)
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Wolfgang Domschke und Robert Klein
Produktionsprogrammplanung bei nichtlinearen Deckungsbeitragsfunktionen
WISU - das Wirtschaftsstudium 2000, 1649-1655 (2000)
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Robert Klein
Project scheduling with time-varying resource constraints
International Journal of Production Research 38, 3937-3952 (2000)
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Robert Klein und Armin Scholl
Scattered branch and bound - an adaptive search strategy applied to resource-constrained project scheduling
Central European Journal of Operations Research 7, 177-201 (2000)
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1999
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Armin Scholl und Robert Klein
Balancing assembly lines effectively – a computational comparison
European Journal of Operational Research 114, 50-58 (1999)
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Robert Klein und Armin Scholl
Computing lower bounds by destructive improvement: an application to resource-constrained project scheduling
European Journal of Operational Research 112, 322-346 (1999)
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A. Scholl und Robert Klein
ULINO: Optimally balancing U-shaped JIT assembly lines
International Journal of Production Research 37, 721-736 (1999)
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1998
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Armin Scholl, Robert Klein und Wolfgang Domschke
Logistik: Aufgaben der Tourenplanung
WISU - das Wirtschaftsstudium 1998, 62-67 (1998)
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Armin Scholl, Robert Klein und Wolfgang Domschke
Logistik: Methoden der Tourenplanung
WISU - das Wirtschaftsstudium 1998, 163-168 (1998)
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Armin Scholl, Robert Klein und Wolfgang Domschke
Pattern based vocabulary building for effectively sequencing mixed-model assembly lines
Journal of Heuristics 4, 359-381 (1998)
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1997
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Armin Scholl, Gabriela Krispin, Robert Klein und Wolfgang Domschke
Besser beschr?nkt: clever optimieren mit Branch and Bound
c't - Magazin für Computer Technik 1997, 336-345 (1997)
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Armin Scholl, Robert Klein und Christian Jürgens
Bison: a fast hybrid procedure for exactly solving the one-dimensional bin packing problem
Computers & Operations Research 24, 627-645 (1997)
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Armin Scholl und Robert Klein
Investitionsprogrammplanung bei Obelix GmbH & Co. KG
WISU - das Wirtschaftsstudium 1997, 1039-1040 (1997)
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Armin Scholl und Robert Klein
SALOME: A Bidirectional Branch-and-Bound Procedure for Assembly Line Balancing
INFORMS Journal on Computing 9, 319-334 (1997)
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1996
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Wolfgang Domschke, Robert Klein und Armin Scholl
Antizipative Leistungsabstimmung bei moderner Variantenflie?fertigung
Zeitschrift für Betriebswirtschaft 66, 1465-1490 (1996)
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Robert Klein und Armin Scholl
Maximizing the production rate in simple assembly line balancing - a branch and bound procedure
European Journal of Operational Research 91, 367-385 (1996)
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Armin Scholl, Wolfgang Domschke und Robert Klein
Tabu Search - durch Verbote schneller optimieren
c't - Magazin für Computer Technik 1996, 326-332 (1996)
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Wolfgang Domschke, Robert Klein und Armin Scholl
Tabu Search - eine intelligente L?sungsstrategie für komplexe Optimierungsprobleme
WiSt - Wirtschaftswissenschaftliches Studium 25, 606-610 (1996)
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