Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1952__125_160321, author = {H.O. Cordes}, title = {Separation der {Variablen} in {HILBERTschen} {R\"aumen.}}, journal = {Mathematische Annalen}, pages = {401--434}, publisher = {mathdoc}, volume = {125}, year = {1952}, zbl = {0050.11801}, url = {http://geodesic.mathdoc.fr/item/MAN_1952__125_160321/} }
H.O. Cordes. Separation der Variablen in HILBERTschen Räumen.. Mathematische Annalen, Tome 125 (1952), pp. 401-434. http://geodesic.mathdoc.fr/item/MAN_1952__125_160321/