000 00343nam a2200157Ia 4500
008 131111s9999 xx 000 0 und d
100 _aGelfand I M
245 _aCalculus of variations
260 _aNew York
260 _bDover
260 _c2000
300 _a232P.
650 _aMathematic : Calculus
763 _a31836
942 0 0 _02
999 _c54745
_d54745