@article{CMH_1943__16_138825, author = {R. Wavre}, title = {L'it\'eration directe des op\'erateurs hermitiens.}, journal = {Commentarii mathematici Helvetici}, pages = {65--72}, publisher = {mathdoc}, volume = {16}, year = {1943}, zbl = {0028.23402}, url = {http://geodesic.mathdoc.fr/item/CMH_1943__16_138825/} }