Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1981__31_3_a2, author = {Rzepecki, Bogdan}, title = {Note on hyperbolic partial differential equations}, journal = {Mathematica slovaca}, pages = {243--250}, publisher = {mathdoc}, volume = {31}, number = {3}, year = {1981}, mrnumber = {621915}, zbl = {0482.35051}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1981__31_3_a2/} }
Rzepecki, Bogdan. Note on hyperbolic partial differential equations. Mathematica slovaca, Tome 31 (1981) no. 3, pp. 243-250. http://geodesic.mathdoc.fr/item/MASLO_1981__31_3_a2/