TY - JOUR AU - G.M. Ziegler AU - N.E. Mnëv TI - Oriented Matroids with Few Mutations. JO - Discrete & computational geometry PY - 1993 SP - 251 EP - 270 VL - 10 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DCG_1993__10_2_131275/ LA - en ID - DCG_1993__10_2_131275 ER -