@article{10_21136_CMJ_1962_100526, author = {Fiedler, Miroslav and Pt\'ak, Vlastimil}, title = {On matrices with non-positive off-diagonal elements and positive principal minors}, journal = {Czechoslovak Mathematical Journal}, pages = {382--400}, publisher = {mathdoc}, volume = {12}, number = {3}, year = {1962}, doi = {10.21136/CMJ.1962.100526}, mrnumber = {0142565}, zbl = {0131.24806}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1962.100526/} }