00706nam0-22002651i-450-990001279900403321000127990FED01000127990(Aleph)000127990FED0100012799020000920d1963----km-y0itay50------baengLinear Approximationby SARD ArturProvidence (RI)American Mathematical Society1963Mathematical SurveysSard,Arthur104665ITUNINARICAUNIMARCBK990001279900403321C-46-(913783MA1MA1Linear Approximation384548UNINAING01