@article{AM2_1980__20_182384, author = {James G. Oxley}, title = {On a covering problem of {Mullin} and {Stanton} for binary matroids.}, journal = {Aequationes mathematicae}, pages = {104--112}, year = {1980}, volume = {20}, zbl = {0433.05020}, url = {http://geodesic.mathdoc.fr/item/AM2_1980__20_182384/} }