@article{1177698957, author = {Pfanzagl, J.}, title = {Characterizations of Conditional Expectations}, journal = {Ann. Math. Statist.}, volume = {38}, number = {6}, year = {1967}, pages = { 415-421}, language = {en}, url = {http://dml.mathdoc.fr/item/1177698957} }
Pfanzagl, J. Characterizations of Conditional Expectations. Ann. Math. Statist., Tome 38 (1967) no. 6, pp. 415-421. http://gdmltest.u-ga.fr/item/1177698957/