PageHeader : Funkcialaj Ekvacioj, 27 (1984), 173-200 Title : Perturbation Method for Linear Periodic Systems II AuthorInfo : By AuthorInfo : Ichiro TSUKAMOTO AuthorInfo : (Keio University, Japan) section : 1. section : 2. section : 3. section : 4. section : 5. section : 6. section : References