A combinatorial interior point method for network flow problems. - Claus Wallacher; Uwe T. Zimmermann (Math. Program., 1992)

Kombinatorische Algorithmen für Flussprobleme und submodulare Flussprobleme. - Claus Wallacher (1992)

A polynomial cycle canceling algorithm for submodular flows. - Claus Wallacher; Uwe T. Zimmermann (Math. Program., 1999)