00834nam0-22003011i-450-99000026989040332120071129142418.0000026989FED01000026989(Aleph)000026989FED0100002698920020821d1972----km-y0itay50------baengy-------001yyApproximation of elliptic boundary-value problemsJean Pierre AubinNew YorkWiley-Interscience1972XVII, 360 p.23 cmPure and applied mathematics26515.353Aubin,Jean-PierreITUNINARICAUNIMARCBK99000026989040332104 012-25CI 6049DINCH02 29 E 161146FINBNDINCHFINBNUNINA