00548nam a2200181Ia 4500082002000000100002200020245007300042260003400115300001600149490003900165500000500204690000600209700000500215952010200220964001700322921001000339999001700349  a515.73bD511.AC  aDevore, Ronald A.  aApproximation of continuous functions by positive linear operatorsb  aBerlinbSpringer-Verlagc1972  aviii, 289p.  aLecture notes in Mathematicsv 293  a  a   a  00104070aISIbISId1998-09-16l0o515.73 D511.ACpDP14547r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a11274  c11274d11274