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@article{SF_1995__50_3_135366, author = {W. Li and M.C. Zhang}, title = {On {Konieczny's} conjecture of {Boolean} matrices.}, journal = {Semigroup forum}, pages = {37--58}, publisher = {mathdoc}, volume = {50}, number = {3}, year = {1995}, zbl = {0815.20063}, url = {http://geodesic.mathdoc.fr/item/SF_1995__50_3_135366/} }
W. Li; M.C. Zhang. On Konieczny's conjecture of Boolean matrices.. Semigroup forum, Tome 50 (1995) no. 3, pp. 37-58. http://geodesic.mathdoc.fr/item/SF_1995__50_3_135366/