00330nam a2200121Ia 450000500170000000800410001702000180005808200220007610000240009824500310012226000420015330000130019520250409081934.0231217s9999    xx            000 0 und d  a9788126537099  a001.642  DOE;1  R  aDoeppner, Thomas W. 0aOperating systems in depth  c2011bJohn willey and SonsaNew Delhi  axvi, 444