Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1982__261_182890, author = {Michael Struwe}, title = {Multiple {Solutions} of {Differential} {Equations} {Without} the {Palais-Smale} {Condition.}}, journal = {Mathematische Annalen}, pages = {399--412}, publisher = {mathdoc}, volume = {261}, year = {1982}, zbl = {0506.35034}, url = {http://geodesic.mathdoc.fr/item/MAN_1982__261_182890/} }
Michael Struwe. Multiple Solutions of Differential Equations Without the Palais-Smale Condition.. Mathematische Annalen, Tome 261 (1982), pp. 399-412. http://geodesic.mathdoc.fr/item/MAN_1982__261_182890/