Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MM2_1971__5_154067, author = {Paul H. Rabinowitz}, title = {Time {Periodic} {Solutions} of {Nonlinear} {Wave} {Equations.}}, journal = {Manuscripta mathematica}, pages = {165--194}, publisher = {mathdoc}, volume = {5}, year = {1971}, zbl = {0219.35062}, url = {http://geodesic.mathdoc.fr/item/MM2_1971__5_154067/} }
Paul H. Rabinowitz. Time Periodic Solutions of Nonlinear Wave Equations.. Manuscripta mathematica, Tome 5 (1971), pp. 165-194. http://geodesic.mathdoc.fr/item/MM2_1971__5_154067/