A Modulo Network Simplex Method for Solving Periodic Timetable Optimisation Problems. - Karl Nachtigall; Jens Opitz (OR, 2007)

Solving Periodic Timetable Optimisation Problems by Modulo Simplex Calculations. - Karl Nachtigall; Jens Opitz (ATMOS, 2008)

Solving Periodic Event Scheduling Problems with SAT. - Peter Großmann; Steffen Hölldobler; Norbert Manthey; Karl Nachtigall; Jens Opitz; Peter Steinke (IEA/AIE, 2012)

A Novel Approach to Strategic Planning of Rail Freight Transport. - Reyk Weiß; Jens Opitz; Karl Nachtigall (OR, 2012)

Modelling and Solving a Train Path Assignment Model. - Karl Nachtigall; Jens Opitz (OR, 2014)

On Optimally Allocating Tracks in Complex Railway Stations. - Reyk Weiß; Michael Kümmling; Jens Opitz (OR, 2015)

A state-of-the-art realization of cyclic railway timetable computation. - Michael Kümmling; Peter Großmann; Karl Nachtigall; Jens Opitz; Reyk Weiß (Public Transp., 2015)