TY - CONF A1 - Grötschel, Martin A1 - Jünger, Michael A1 - Reinelt, Gerhard A2 - Rival, Ivan T1 - Acyclic subdigraphs and linear orderings T2 - 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 Y1 - 1985 UR - https://opus4.kobv.de/opus4-zib/frontdoor/index/index/docId/3042 SP - 217 EP - 264 PB - D. Reidel Publishing Company ER -