@article{10_4153_CJM_1968_016_9,
     author = {Brualdi, R. A.},
     title = {Convex {Sets} of {Non-Negative} {Matrices}},
     journal = {Canadian journal of mathematics},
     pages = {144--157},
     year = {1968},
     volume = {20},
     number = {1},
     doi = {10.4153/CJM-1968-016-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1968-016-9/}
}