00725nam0-22002651i-450-99000148074040332120001010000148074FED01000148074(Aleph)000148074FED0100014807420001010d--------km-y0itay50------baitay-------001yyHistoire des Sciencesfernand Perrinpreface de Eugene DarmoisParisEditions Beaudart1963604 p.ill.20 cmPerrin,Fernand65529Darmois,EugèneITUNINARICAUNIMARCBK990001480740403321Histoire des Sciences378384UNINAING0101236cam a2200289 i 450099100428143310753620240314130835.0230621s1970 ru a rb 001 0 eng dBibl. Dip.le Aggr. Matematica e Fisica - Sez. Fisicaeng515.64LC QA371510.34Ėlʹsgolʹt︠s︡, L. Ė.(Lev Ėrnestovich)447993Different︠s︡ialʹnye uravenii︠a︡ i variat︠s︡ionnoe ischislenie.English3655111Differential equations and the calculus of variations /L. Elsgolts ; translated from the russian by George YankovskyMoscow :Mir Publishers,19702nd reprint 1973440 p. ;22 cmTranslation of: Different︠s︡ialʹnye uravnenii︠a︡ i variat︠s︡ionnoe ischislenieOther title page in russianBibliography: p. [436]Differential equationsCalculus of variationsDifferent︠s︡ialʹnye uravenii︠a︡ i variat︠s︡ionnoe ischislenie991004281433107536Different︠s︡ialʹnye uravenii︠a︡ i variat︠s︡ionnoe ischislenie3655111UNISALENTO