%% -*-BibTeX-*- @Article{GroetschelPulleyblank1981b, author = "Martin Gr{\"o}tschel and William R. Pulleyblank", title = "Weakly bipartite graphs and the max-cut problem", journal = "Operations Research Letters", volume = "1", number = "1", pages = "23--27", year = "1981", classmath = "*90C35 05C38 68Q25", language = "English", }