000 00435nam a2200145Ia 4500
003 LDD
040 _cLDD
082 _a515.7 Si64T
100 _aSinger, Ivan
245 4 _aThe theory of best approximation and functional analysis
_cIvan Singer
260 _aPhiladelphia
_bSociety for Industrial and Applied mathematics
_c1974
300 _avii,195p.
440 _aRegional conference series in applied mathematics
_v 13
942 _2ddc
_cG
999 _c6598
_d6598