Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MS2_1963__13_165856, author = {Hans-Otto Kreiss}, title = {\"Uber sachgem\"a{\ss}e {Cauchyprobleme.}}, journal = {Mathematica Scandinavica}, pages = {109--128}, publisher = {mathdoc}, volume = {13}, year = {1963}, zbl = {0145.13303}, url = {http://geodesic.mathdoc.fr/item/MS2_1963__13_165856/} }
Hans-Otto Kreiss. Über sachgemäße Cauchyprobleme.. Mathematica Scandinavica, Tome 13 (1963), pp. 109-128. http://geodesic.mathdoc.fr/item/MS2_1963__13_165856/