%% -*-BibTeX-*- @InProceedings{Groetschel1992, author = "Martin Gr{\"o}tschel", editor = "Greg Frederickson", booktitle = "Proceedings of the third annual ACM-SIAM symposium on discrete algorithms,held January 27-29, 1992, in Orlando, FL, USA", title = "Theoretical and practical aspects of combinatorial problem solving", publisher = "SIAM", address = "Philadelphia, PA", pages = "195", year = "1992", classmath = "*90C27 90C90 90B18 90B30", language = "English", }