Critical point theorems and applications to nonlinear boundary value problems
ISSN: 0362-546X
Année de publication: 1990
Volumen: 14
Número: 5
Pages: 393-411
Type: Article
ISSN: 0362-546X
Année de publication: 1990
Volumen: 14
Número: 5
Pages: 393-411
Type: Article