00577nam0-22002291i-450-990001266030403321000126603FED01000126603(Aleph)000126603FED0100012660320000920d1972----km-y0itay50------baengApproximation theoryBaselButzer and J. Korevaar1972ITUNINARICAUNIMARCBK9900012660304033212021-E-200MA1MA1Approximation theory80704UNINAING01