Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1968__178_161749, author = {J. PERSSON}, title = {Exponential {Majorization} and {Global} {Goursat} {Problems.}}, journal = {Mathematische Annalen}, pages = {271--276}, publisher = {mathdoc}, volume = {178}, year = {1968}, zbl = {0159.14702}, url = {http://geodesic.mathdoc.fr/item/MAN_1968__178_161749/} }
J. PERSSON. Exponential Majorization and Global Goursat Problems.. Mathematische Annalen, Tome 178 (1968), pp. 271-276. http://geodesic.mathdoc.fr/item/MAN_1968__178_161749/