Isochronous centres and foci via commutators and normal forms
ISSN: 0308-2105, 1473-7124
Année de publication: 2008
Volumen: 138
Número: 1
Pages: 1-13
Type: Article
ISSN: 0308-2105, 1473-7124
Année de publication: 2008
Volumen: 138
Número: 1
Pages: 1-13
Type: Article