00297nam a2200121Ia 4500008004100000100001500041245004400056260002600100300000900126650001600135942000700151999001700158190216s9999||||xx |||||||||||||| ||und||  aBerman G N 2aA Problem Book In Mathematical Analysis  bMir Pubs Moscowc1975  a462p  aMathematics  cBK  c30920d30920