Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1923__88_158980, author = {O. Haupt}, title = {Zur {Parametrixmethode}}, journal = {Mathematische Annalen}, pages = {136--150}, publisher = {mathdoc}, volume = {88}, year = {1923}, language = {de}, url = {http://geodesic.mathdoc.fr/item/MAN_1923__88_158980/} }
O. Haupt. Zur Parametrixmethode. Mathematische Annalen, Tome 88 (1923), pp. 136-150. http://geodesic.mathdoc.fr/item/MAN_1923__88_158980/