00877cam a22002651 45000010008000000030008000080050017000160080041000330100017000740150013000910350019001040400039001230420012001620500017001740820015001911000055002062450048002612600049003093000029003583650014003874900081004015000020004826500028005028300081005306091415BD-DhUL20140905082243.0760626s1961 enka 000 0 eng  a 61014038  aGB62-341 a(OCoLC)2282556 aDLCcOClUdUkdOCoLCdDLCdBD-DhUL apremarc00aQA315b.E513 a517.4bELC1 aĖlʹsgolʹt︠s︡, L. Ė.q(Lev Ėrnestovich)10aCalculus of variations /cby L. E. Elsgolc. aOxford ;aNew York :bPergamon Press,c1961. a178 p. :bill. ;c23 cm. aGBPb1.151 aInternational series of monographs on pure and applied mathematics ; vv. 19 aIncludes index. 0aCalculus of variations. 0aInternational series of monographs in pure and applied mathematics ;vv. 19.