%0 Journal Article %A Čihák, Pavel %T On an exposed element of a set of doubly stochastic rectangular matrices %J Commentationes Mathematicae Universitatis Carolinae %D 1970 %P 99-113 %V 11 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1970__11_1_a7/ %G en %F CMUC_1970__11_1_a7