@article{ELA_2010__20__a36,
     author = {Canto, Rafael and Ricarte, Beatriz and Urbano, Ana Maria},
     title = {Some characterizations of totally nonpositive (totally negative) matrices},
     journal = {The electronic journal of linear algebra},
     pages = {241--253},
     publisher = {mathdoc},
     volume = {20},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ELA_2010__20__a36/}
}