Dergiler / Technical University of Istanbul Bulletin / 1994 / Cilt: 47 - Sayı: 3The reductive perturbation method Part I: General theoryTosiya TANIUTI,Esin İNANDergiTechnical University of Istanbul BulletinSayı1994 · Cilt: 47 - Sayı: 3Sayfa115–144DOI—