00273nam a2200121Ia 4500008004100000100001500041245002400056260002600080300000900106650001200115942000700127999001700134190216s9999||||xx |||||||||||||| ||und||  aPinsky A A 0aProblems In Physics  bMir Pubs Moscowc1980  a332p  aPhysics  cBK  c33195d33195