000 00309nam a2200133Ia 4500
020 _a9780486457994
082 _a515.64 ELS/C
100 _aElsgolc, Lev D
245 0 _aCalculus of Variations
260 _bDover Publications
_aNew York
_c2014
300 _a178p
650 _aCalculus Variations
942 _cBK
999 _c5742
_d5742