Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MAT_1971_15_4_a1, author = {P. R. Halmos}, title = {Ten problems in {Hilbert} space}, journal = {Matematika}, pages = {28--67}, publisher = {mathdoc}, volume = {15}, number = {4}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MAT_1971_15_4_a1/} }
P. R. Halmos. Ten problems in Hilbert space. Matematika, Tome 15 (1971) no. 4, pp. 28-67. http://geodesic.mathdoc.fr/item/MAT_1971_15_4_a1/