000 00297nam a2200097Ia 4500
008 240404s9999 xx 000 0 und d
100 _aKorneichuk, N.
245 0 _aExact constants in approximation theory
_cN. Korneichuk
260 _aCambridge
_bCambridge University Press
_c1991
942 _aIMAR
_cCART
999 _c32551
_d32551