00883nam a2200241 a 450000100060000000300080000600500170001400800410003103500190007204000270009104100080011808200220012610000440014824500650019226000680025730000340032549000370035950400300039665000330042694200120045999900170047195201530048869877BD-RjUL20211209081933.0170415r19521949onca     b    000 0 eng    a(BD-RjUL)70089  aDLCcBD-RjULdDLCbeng  aeng00a531223bLAV 19521 aLanczos, Cornelius,d1893-1974.920649514aThe variational principles of mechanics /cCornelius Lanczos  aToronto :bUniversity of Toronto Press,c1949, [reprinted 1952]  axxv, 307 p. :bill. ;c23 cm.  aMathematical expositions,vno. 4  aBibliography: p. 365-366. 0aMechanics, Analytic.9143925  2ddccBK  c69877d69877  00102ddc40718NFICaRUCLbRUCLcReadingd1958-02-05eOxford University Pressg36.90l0o531.01 LAV 1952r2017-04-15 00:00:00tC-1w2017-04-15yBK