000 00510nam a2200193 4500
001 9958
003 BD-DhUET
008 720118s1970 ru a b 001 0 eng
040 _aDLC
_cDLC
_dBD-DhUET
082 0 0 _a517.38
_bELS/1970
100 _aElsgolts, L.
245 1 0 _aDifferential equations and the calculus of variations
250 _a1st ed.
260 _aMoscow
_bMir Publishers
_c1970
300 _a440 p.
_c22 cm.
504 _aIncludes bibliographies
650 0 _aDifferential equations
942 _cGB
999 _c9958
_d9958