%0 Journal Article
%A J. Richter-Gebert
%A N.E. Mnëv
%T Two Constructions of Oriented Matroids with Disconnected Extension Space.
%J Discrete & computational geometry
%D 1993
%P 271-286
%V 10
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DCG_1993__10_2_131276/
%F DCG_1993__10_2_131276