%% -*-BibTeX-*- @Article{GroetschelWakabayashi1990a, author = "Martin Gr{\"o}tschel and Yoshiko Wakabayashi", title = "Facets of the clique partitioning polytope", journal = "Mathematical Programming, Series A", volume = "47", number = "3", pages = "367--387", year = "1990", classmath = "*90C35 05C70 52B12 90C27", language = "English", }