@article{1077465577, author = {Protter, M. H.}, title = {An existence theorem for the generalized Tricomi problem}, journal = {Duke Math. J.}, volume = {21}, number = {1}, year = {1954}, pages = { 1-7}, language = {en}, url = {http://dml.mathdoc.fr/item/1077465577} }
Protter, M. H. An existence theorem for the generalized Tricomi problem. Duke Math. J., Tome 21 (1954) no. 1, pp. 1-7. http://gdmltest.u-ga.fr/item/1077465577/