00647nam0-22002531i-450-99000048063040332120081028125901.0000048063FED01000048063(Aleph)000048063FED0100004806320020821d1970----km-y0itay50------baengUSy-------001yyIntegral equationsF.G. TricomiNew YorkInterscience1970Tricomi,Francesco GiacomoITUNINARICAUNIMARCBK99000048063040332110 B II 1778675DINELDINELUNINA