@article{GDZPPN002478420, title = {Positive Diagonals of ...1-Matrices.}, journal = {Monatshefte f\"ur Mathematik}, volume = {77}, year = {1973}, pages = {225-240}, zbl = {0267.05020}, url = {http://dml.mathdoc.fr/item/GDZPPN002478420} }
Perfect, Hazel. Positive Diagonals of ...1-Matrices.. Monatshefte für Mathematik, Tome 77 (1973) pp. 225-240. http://gdmltest.u-ga.fr/item/GDZPPN002478420/