000 00242nam a2200109Ia 4500
008 200129s9999 xx 000 0 und d
082 _aLIU-R
100 _aLIU,JANE W.S.
245 0 _aREAL-TIME SYSTEM
260 _bPEARSON
_c2000
942 _cREF
999 _c2254
_d2254