URN:NBN:SI:doc-3NC1KD6W1992Radovan, Mariodocuments/doc/3/URN_NBN_SI_doc-3NC1KD6W_001.pdfdocuments/doc/3/URN_NBN_SI_doc-3NC1KD6W_001.txt163articlestr. 17-240350-5596100092160URN:NBN:SI:doc-3NC1KD6WengSlovensko društvo InformatikaInformatica (Ljubljana)InCinformacijski sistemiintegritetalogiclogikapodatkovne bazeIntegrity in the relational data model