TY - CONF A1 - Bachem, Achim A1 - Grötschel, Martin A2 - König, Heinz A2 - Korte, Bernhard A2 - Ritter, Klaus T1 - Characterizations of adjacency of faces of polyhedra T2 - Mathematical Programming at Oberwolfach Y1 - 1981 UR - https://opus4.kobv.de/opus4-zib/frontdoor/index/index/docId/3018 VL - 14 SP - 1 EP - 22 PB - North-Holland ER -