00438nam a2200133 a 450000500170000002000150001708200160003210000210004824501150006926000360018430000240022049000390024470000210028320251203110606.0  a3540651195  a515.35bKOZ  aKozlov, Vladimir  aDifferential Equations with Operator Coefficientsbwith Applications to Boundary Value Problems for Partial...  aNew YorkbSpringer-Verlagc1999  axx,442p.c24 cm. HB  aSpringer Monographs in Mathematics  aMaz'ya, Vladimir