@article{AIHPB_1970__6_1_9_0,
     author = {Dang Ngoc Nghiem},
     title = {Convergence forte des esp\'erances conditionnelles et des projecteurs d'un espace de {Hilbert}},
     journal = {Annales de l'institut Henri Poincar\'e. Section B. Calcul des probabilit\'es et statistiques},
     pages = {9--13},
     publisher = {Gauthier-Villars},
     volume = {6},
     number = {1},
     year = {1970},
     mrnumber = {275486},
     zbl = {0191.46901},
     language = {fr},
     url = {http://archive.numdam.org/item/AIHPB_1970__6_1_9_0/}
}