01010nam a2200277 i 450099100103641970753620020507105439.0950512s1993 ||| ||| | eng 9810213557b1016456x-39ule_instLE00641069ExLDip.to Fisicaita510.22510.34510.35Steeb, Willi-Hans32027Invertible point trasformations and nonlinear differential equations /Willi-Hans SteebSingapore :World Scientific,1993viii, 180 p. ;22 cmDifferential equations, nonlinear.b1016456x21-09-0627-06-02991001036419707536LE006 510.34/510.39 STE12006000021548le006-E0.00-l- 00000.i1020028927-06-02Invertible point trasformations and nonlinear differential equations188935UNISALENTOle00601-01-95ma -engxx 01