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@article{MS2_1977__41_166555, author = {A.B. Hansen}, title = {On a certain class of polytopes associated with independence systems.}, journal = {Mathematica Scandinavica}, pages = {225--241}, publisher = {mathdoc}, volume = {41}, year = {1977}, zbl = {0411.05033}, url = {http://geodesic.mathdoc.fr/item/MS2_1977__41_166555/} }
A.B. Hansen. On a certain class of polytopes associated with independence systems.. Mathematica Scandinavica, Tome 41 (1977), pp. 225-241. http://geodesic.mathdoc.fr/item/MS2_1977__41_166555/