@article{1103034573, author = {Ryff, John V.}, title = {On the representation of doubly stochastic operators.}, journal = {Pacific J. Math.}, volume = {13}, number = {4}, year = {1963}, pages = { 1379-1386}, language = {en}, url = {http://dml.mathdoc.fr/item/1103034573} }
Ryff, John V. On the representation of doubly stochastic operators.. Pacific J. Math., Tome 13 (1963) no. 4, pp. 1379-1386. http://gdmltest.u-ga.fr/item/1103034573/