Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{CMH_1968__43_139354, author = {J.T. Marti}, title = {Operational {Calculus} for {Two} {Commuting} {Closed} {Operators.}}, journal = {Commentarii mathematici Helvetici}, pages = {87--97}, publisher = {mathdoc}, volume = {43}, year = {1968}, zbl = {0155.46103}, url = {http://geodesic.mathdoc.fr/item/CMH_1968__43_139354/} }
J.T. Marti. Operational Calculus for Two Commuting Closed Operators.. Commentarii mathematici Helvetici, Tome 43 (1968), pp. 87-97. http://geodesic.mathdoc.fr/item/CMH_1968__43_139354/