%% -*-BibTeX-*- @InProceedings{GroetschelJuengerReinelt1985a, author = "Martin Gr{\"o}tschel and Michael J{\"u}nger and Gerhard Reinelt", editor = "Ivan Rival", booktitle = "{Graphs and Order. The Role of Graphs in the Theory of Ordered Sets and its Applications}, Proceedings of NATO ASI, Ser. C 147, Banff/Canada 1984", title = "Acyclic subdigraphs and linear orderings: Polytopes, facets, and a cutting plane algorithm", publisher = "D. Reidel Publishing Company", pages = "217--264", year = "1985", classmath = "*90C10 52Bxx 05C20", language = "English", }