00314nam a2200121 a 450000500170000002000150001708200210003210000220005324500200007526000340009530000180012949000450014720251203090445.0  a044485293X  a515.72,bDD, Pie  aPietsch, Albrecht  aOperator ideals  aNew YorkbNorth-Hollandc1980  a451p., 22 cm.  aNorth-Holland Mathematical Librarydv.20