Winfried Hochst

Scheduling Trams in the Morning is Hard

Ulrich, Blasumy, R. Michael, 1996 .

Angewandte Mathematik Und Informatik Universit at Zu K Oln Cycle Bases for Lattices of Matroids with No Fano Dual Minor and Their One-element Extensions

Winfried Hochst, U. Blasum, 1993 .