@article{MAN_1963__150_161059,
     author = {A.M. OSTROWSKI},
     title = {On {Positive} {Matrices.}},
     journal = {Mathematische Annalen},
     pages = {276--284},
     year = {1963},
     volume = {150},
     zbl = {0115.24803},
     url = {http://geodesic.mathdoc.fr/item/MAN_1963__150_161059/}
}