%0 Journal Article %A G.M. Ziegler %T 'What Is a Complex Matroid?' %J Discrete & computational geometry %D 1993 %P 313-350 %V 10 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DCG_1993__10_2_131278/ %F DCG_1993__10_2_131278