01109nam2-2200349li-450 99000323021020331620180918155421.00-444-853065000323021USA01000323021(ALEPH)000323021USA010003230212002009041979-------y0itay0103----baengNLAsymptotic analysis of singular perturbationsWiktor EckhausAmsterdam [etc.]North-Hollandcopyr. 1979XI, 287 p.ill.23 cmStudies in mathematics and its applications90010003346092001Studies in mathematics and its applications9Perturbazione <matematica>531.35ECKHAUS,Wiktor12826ITAsalbcISBD990003230210203316510 SMI 913728/CBS51000112266BKSCIRSIAV79020090428USA011147RSIAV79020091110USA011246Asymptotic analysis of singular perturbations32452UNISA