%% -*-BibTeX-*- @InCollection{Groetschel1986b, author = "Martin Gr{\"o}tschel", editor = "Wilhelm Krelle", booktitle = "{\"O}konomische Prognose-, Entscheidungs- und Gleichgewichtsmodelle, Abschlu{\ss}berichte des SFB 21", title = "Fortschritte in der polyedrischen Kombinatorik", publisher = "Verlag Chemie", address = "Weinheim", pages = "341--367", year = "1986", ISBN = "3-527-27702-1", language = "German", }