Scheduling train crews : a case study for the Dutch railways / Freling R., Lentink R.M., & Odijk M.AScheduling train crews: a case study for the Dutch railways / R. Freling, R.M. Lentink, M.A. OdijkA decision support system for crew planning in passenger transportation using a flexible branch-and-price algorithm / Richard Freling, Ramon M. Lentink and Albert P.M. WagelmansA decision support system for crew planning in passenger transportation using a flexible branch-and-price algorithm / Richard Freling, Ramon M. Lentink, & Albert P.M. WagelmansSME innovation and the crucial role of the entrepreneur / Enno Masurel, Kees van Montfoort [i.e. Montfort], Ramon LentinkApplying operations research techniques to planning of train shunting / Ramon M. Lentink ... [et al.]Shunting of passenger train units : an integrated approach / Leo Kroon, Ramon M. Lentink and Alexander SchrijverSME innovation and the crucial role of the entrepreneur / Enno Masurel, Kees van Montfoort [i.e. Montfort], Ramon Lentink