%% -*-BibTeX-*- @Article{GroetschelTruemper1989b, author = "Martin Gr{\"o}tschel and Klaus Truemper", title = "Master Polytopes for Cycles of Binary Matroids", journal = "Linear Algebra and its Applications", volume = "114/115", pages = "523--540", year = "1989", classmath = "*05B35 05B20", language = "English", }