Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{CMH_1949__22_138965, author = {Eduard Batschelet}, title = {Die {Operatorenmethode} von {L.} {Fantappi\`e} und die {Laplace-Transformation.}}, journal = {Commentarii mathematici Helvetici}, pages = {200--214}, publisher = {mathdoc}, volume = {22}, year = {1949}, zbl = {0032.02703}, url = {http://geodesic.mathdoc.fr/item/CMH_1949__22_138965/} }
Eduard Batschelet. Die Operatorenmethode von L. Fantappiè und die Laplace-Transformation.. Commentarii mathematici Helvetici, Tome 22 (1949), pp. 200-214. http://geodesic.mathdoc.fr/item/CMH_1949__22_138965/