00318nam a2200121 a 450000500170000008200160001710000180003310000240005124500510007526000260012630000230015263000210017520251203090609.0  a005.74bCER  aCeri, Stefano  aPelagatti, Giuseppe  aDistributed databases : principles and systems  aNew YorkbMcGraw Hill  a393 p.c22 cm.cPB  aComputer Science