000 00274nam a2200097Ia 4500
008 240817s9999 xx 000 0 und d
100 _aTancnbaum , A . S
245 0 _aOperation systems: design an dimplementation
260 _c, 1987
_a New York
_b Prentice - Hall
942 _cBK
999 _c29320
_d29320