%% -*-BibTeX-*- @Article{BachemGroetschel1981b, author = "Achim Bachem and Martin Gr{\"o}tschel", title = "Homogenization of polyhedra", journal = "Methods of Operations Research", volume = "40", pages = "215--219", year = "1981", classmath = "*52Bxx 52A20 52A40 65K99", language = "English", }