01005nam0-22003611i-450 99000047821040332120190307143222.0000047821FED01000047821(Aleph)000047821FED0100004782120020821d1970----km-y0itay50------baengCAa-------001yy<<The >>variational principles of mechanicsCornelius Lanczos4th ed.New YorkDover[1970]418 p.ill.23 cmMathematical expositions4MeccanicaAnaliticaPrincipi variazionali531.015Lanczos,Cornelius27778ITUNINARICAUNIMARCBK99000047821040332110 B II 4931373 DEEDINELTECN B 2248067/2019FARBCFARBCDINELVariational principles of mechanics192242UNINA