@article{TIMB_2009_17_1_a7,
     author = {O. Y. Kushel},
     title = {On one class of positive matrices with minors of different signs},
     journal = {Trudy Instituta matematiki},
     pages = {79--89},
     publisher = {mathdoc},
     volume = {17},
     number = {1},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMB_2009_17_1_a7/}
}