000 00285nam a2200121Ia 4500
008 160710s1991 xx 000 0 und d
082 _a621.310285 NAS
100 _aNASER , A.
245 _aExpert systems application
260 _bHemisphere
_c1991
300 _a689
942 _2ddc
_cB
999 _c55932
_d55932