@article{1029000801, author = {Kim, C. W.}, title = {Approximations of doubly substochastic operators.}, journal = {Michigan Math. J.}, volume = {19}, number = {1}, year = {1972}, pages = { 83-95}, language = {en}, url = {http://dml.mathdoc.fr/item/1029000801} }
Kim, C. W. Approximations of doubly substochastic operators.. Michigan Math. J., Tome 19 (1972) no. 1, pp. 83-95. http://gdmltest.u-ga.fr/item/1029000801/