Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1957__67_169671, author = {G.S.S. Ludford and S.H. Schot}, title = {On {Sonic} {Limit} {Lines} in the {Hodograph} {Method.}}, journal = {Mathematische Zeitschrift}, pages = {229--237}, publisher = {mathdoc}, volume = {67}, year = {1957}, zbl = {0083.41103}, url = {http://geodesic.mathdoc.fr/item/MZ_1957__67_169671/} }
G.S.S. Ludford; S.H. Schot. On Sonic Limit Lines in the Hodograph Method.. Mathematische Zeitschrift, Tome 67 (1957), pp. 229-237. http://geodesic.mathdoc.fr/item/MZ_1957__67_169671/