| Dynamic capacitated lot-sizing problems: a classification and review of solution approaches L Buschkühl, F Sahling, S Helber, H Tempelmeier Or Spectrum 32, 231-261, 2010 | 398 | 2010 |
| A fix-and-optimize approach for the multi-level capacitated lot sizing problem S Helber, F Sahling International Journal of Production Economics 123 (2), 247-256, 2010 | 300 | 2010 |
| Solving a multi-level capacitated lot sizing problem with multi-period setup carry-over via a fix-and-optimize heuristic F Sahling, L Buschkühl, H Tempelmeier, S Helber Computers & Operations Research 36 (9), 2546-2553, 2009 | 234 | 2009 |
| A heuristic for dynamic multi-item multi-level capacitated lotsizing for general product structures H Tempelmeier, S Helber European Journal of Operational Research 75 (2), 296-311, 1994 | 159 | 1994 |
| Application of a real-world university-course timetabling model solved by integer programming K Schimmelpfeng, S Helber Or Spectrum 29, 783-803, 2007 | 147 | 2007 |
| Ablauforganisation in Produktion und Logistik HU Küpper, S Helber (No Title), 2004 | 144 | 2004 |
| Dynamic capacitated lot sizing with random demand and dynamic safety stocks S Helber, F Sahling, K Schimmelpfeng OR spectrum 35, 75-105, 2013 | 132 | 2013 |
| Performance analysis of flow lines with non-linear flow of material S Helber Springer Science & Business Media, 2012 | 110 | 2012 |
| Scheduling resource-constrained projects with a flexible project structure C Kellenbrink, S Helber European Journal of Operational Research 246 (2), 379-391, 2015 | 102 | 2015 |
| A hierarchical facility layout planning approach for large and complex hospitals S Helber, D Böhme, F Oucherif, S Lagershausen, S Kasper Flexible services and manufacturing journal 28, 5-29, 2016 | 88 | 2016 |
| Performance analysis of an inbound call center with skills-based routing: A priority queueing system with two classes of impatient customers and heterogeneous agents R Stolletz, S Helber OR Spectrum 26, 331-352, 2004 | 67 | 2004 |
| Kapazitätsorientierte Losgrößenplanung in PPS-Systemen S Helber M&P, Verlag für Wiss. u. Forschung, 1994 | 63 | 1994 |
| Decision support for rehabilitation hospital scheduling K Schimmelpfeng, S Helber, S Kasper OR spectrum 34, 461-489, 2012 | 60 | 2012 |
| Profit-oriented shift scheduling of inbound contact centers with skills-based routing, impatient customers, and retrials S Helber, K Henken Or Spectrum 32 (1), 109-134, 2010 | 60 | 2010 |
| Lot sizing in capacitated production planning and control systems S Helber Operations-Research-Spektrum 17, 5-18, 1995 | 60 | 1995 |
| Decomposition of unreliable assembly/disassembly networks with limited buffer capacity and random processing times S Helber European Journal of Operational Research 109 (1), 24-42, 1998 | 59 | 1998 |
| Using linear programming to analyze and optimize stochastic flow lines S Helber, K Schimmelpfeng, R Stolletz, S Lagershausen Annals of Operations Research 182, 193-211, 2011 | 55 | 2011 |
| Call Center Management in der Praxis: Strukturen und Prozesse betriebswirtschaftlich optimieren S Helber, R Stolletz Springer-Verlag, 2011 | 53 | 2011 |
| Location planning for dynamic wireless charging systems for electric airport passenger buses S Helber, J Broihan, YJ Jang, P Hecker, T Feuerle Energies 11 (2), 258, 2018 | 51 | 2018 |
| Cash-flow-oriented buffer allocation in stochastic flow lines S Helber International Journal of Production Research 39 (14), 3061-3083, 2001 | 50 | 2001 |
