@article{DCG_1993__10_2_131273,
     author = {G.M. Ziegler and J. Richter-Gebert},
     title = {Topological {Representation} of {Dual} {Pairs} of {Oriented} {Matroids.}},
     journal = {Discrete & computational geometry},
     pages = {237--240},
     publisher = {mathdoc},
     volume = {10},
     number = {2},
     year = {1993},
     url = {http://geodesic.mathdoc.fr/item/DCG_1993__10_2_131273/}
}