00276nam a2200121Ia 4500008004100000100001700041245002400058260002300082300000900105650001600114942000700130999001700137190216s9999||||xx |||||||||||||| ||und||  aRudin Walter 0aFunctional Analysis  bMcgraw -hillc1973  a397p  aMathematics  cBK  c30963d30963