00281nas a22001097a 4500008004100000022001400041245002500055260005800080300000700138362001000145650001600155190206s9999    xx            000 0 und d  a0025-5629  aMathematical Reviews  aProvidence, R.I.bAmerican Mathematical Societyc1940  av.  a1940-  aMathematics