@article{CMUC_1970__11_1_a7,
     author = {\v{C}ih\'ak, Pavel},
     title = {On an exposed element of a set of doubly stochastic rectangular matrices},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {99--113},
     publisher = {mathdoc},
     volume = {11},
     number = {1},
     year = {1970},
     mrnumber = {0291196},
     zbl = {0205.05003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1970__11_1_a7/}
}