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Gordeeva, E.: Enumeration, coding and complexity of linear reaction mechanisms (1994)
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Tratch, S.S.; Zefirov, N.S.: ¬A hierarchical classification scheme for chemical reactions (1998)
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Ugi, I.: Models, concepts, theories and formal languages in chemistry and their use as a basis for computer assistance in chemistry (1994)
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Eastman, C.M.; Rose, J.R.: Hierarchical support for browsing (1996)
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Nakayama, T.: Semantic dictionary for substructure matching of chemical structures with general descriptors (1994)
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