000 00309nam a2200109Ia 4500
008 160523s9999 xx 000 0 und d
020 _a978-9-810-21850-8
100 _aWu, X.
245 _aKnowledge base assisted database retrieval systems
260 _aSingapore
_bWorld Scientific
_c1996
300 _axiv, 232p.
999 _c34843
_d34843