000 00623nam a22002057a 4500
999 _c7497
_d7497
001 21115
003 BD-DhUAP
005 20210123143845.0
008 201103s1977 ii 000 0 eng d
040 _aDLC
_cDLC
_dBD-DhUAP
_bEng
082 0 0 _a515.35 ELS
_223
100 _aElsgolts, L.
245 1 0 _aDifferential equations and the calculus of variations /
_cL. Elsgolts ; translated by George Yankovosky.
260 _aMoscow :
_bMir publishers,
_cc1977.
300 _a440 pages :
_billustrations ;
_c22 cm.
650 0 _aDifferential equations.
700 _aYankovosky, George.
942 _2ddc
_cBK