%% -*-BibTeX-*- @InCollection{GroetschelWakabayashi1990b, author = "Martin Gr{\"o}tschel and Yoshiko Wakabayashi", editor = "Rainer Bodendiek and Rudolf Henn", booktitle = "Topics in combinatorics and graph theory. Essays in honour of Gerhard Ringel", title = "Composition of facets of the clique partitioning polytope", publisher = "Physica-Verlag", address = "Heidelberg", pages = "271--284", year = "1990", classmath = "*90C35 05C70 52B12 05C35 90C27 52B20 90C05 90C60", language = "English", }