00784nam0-22002771i-450-990002571580403321000257158FED01000257158(Aleph)000257158FED0100025715820000920d1950----km-y0itay50------baENG<<An >>introduction to the calculus of variationsCharles Fox.OxfordOxford University Press1950 .viii, 271 p.23 cmCalcolo delle variazioni516Fox,Charles104501ITUNINARICAUNIMARCBK990002571580403321MXVI-A-25774MASMASIntroduction to the calculus of variations436429UNINAING01