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100 1 _aNovak, Theresa
245 0 0 _aComparison of search systems for online chemical patent searching
650 _aChemie
_9587
650 _aProgramm
_93823
650 _aPatentdokumentation
_93575
650 _aDatenbank
_9977
773 0 _aWPI. 9(1987),3,211-228.
_wz_WPI
999 _c9965
_d9965