@article{1103035738, author = {Drazin, M. P. and Haynsworth, E. V.}, title = {A theorem on matrices of $0$'s and $1$'s.}, journal = {Pacific J. Math.}, volume = {13}, number = {4}, year = {1963}, pages = { 487-495}, language = {en}, url = {http://dml.mathdoc.fr/item/1103035738} }
Drazin, M. P.; Haynsworth, E. V. A theorem on matrices of $0$'s and $1$'s.. Pacific J. Math., Tome 13 (1963) no. 4, pp. 487-495. http://gdmltest.u-ga.fr/item/1103035738/