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@article{AM2_1969__2_182322, author = {A.L. DULMAGE and N.S. MENDELSOHN}, title = {Some {Graphical} {Properties} of {Matrices} with {Non-Negative} {Entries}}, journal = {Aequationes mathematicae}, pages = {150--162}, publisher = {mathdoc}, volume = {2}, year = {1969}, zbl = {0174.26702}, url = {http://geodesic.mathdoc.fr/item/AM2_1969__2_182322/} }
A.L. DULMAGE; N.S. MENDELSOHN. Some Graphical Properties of Matrices with Non-Negative Entries. Aequationes mathematicae, Tome 2 (1969), pp. 150-162. http://geodesic.mathdoc.fr/item/AM2_1969__2_182322/