Globalizing a nonsmooth Newton method via nonmonotone path search. - Stephan Bütikofer (Math. Methods Oper. Res., 2008)

On second-order Taylor expansion of critical values. - Stephan Bütikofer; Diethard Klatte; Bernd Kummer (Kybernetika, 2010)

A Nonsmooth Newton Method with Path Search and Its Use in Solving C1, 1 Programs and Semi-Infinite Problems. - Stephan Bütikofer; Diethard Klatte (SIAM J. Optim., 2010)

Extension and Application of a General Pickup and Delivery Model for Evaluating the Impact of Bundling Goods in an Urban Environment. - Stephan Bütikofer; Albert Steiner (OR, 2014)

Periodic Timetabling with 'Track Choice'-PESP Based on Given Line Concepts and Mesoscopic Infrastructure. - Raimond Wüst; Stephan Bütikofer; Severin Ess; Claudio Gomez; Albert Steiner; Marco Laumanns; Jácint Szabó (OR, 2018)

Periodic Timetabling with Flexibility Based on a Mesoscopic Topology. - Stephan Bütikofer; Albert Steiner; Raimond Wüst (OR, 2019)

Maintenance timetable planning based on mesoscopic infrastructure and the transport service intention. - Raimond Wüst; Stephan Bütikofer; Severin Ess; Claudio Gomez; Albert Steiner; Marco Laumanns; Jácint Szabó (J. Rail Transp. Plan. Manag., 2019)