Paul Johannesson Using Conceptual Graph Theory to Support Schema Integration. 283-296 1993 ER db/conf/er/er93.html#Johannesson93 conf/er/93 er93/ER93-P277.pdf http://dx.doi.org/10.1007/BFb0024374 journals/csur/BatiniL86 conf/dood/Beeri89 conf/sigmod/BiskupC86 conf/er/BouzeghoubC90 ... journals/ai/Bruce75 journals/tods/Chen76 journals/computer/ColletHS91 conf/icdt/Convent86 journals/dke/MoulinC92 journals/dke/ElmasriWH85 journals/csur/GallaireMN84 journals/aim/GuhaL90 journals/tods/HammerM81 journals/csur/HullK87 ... conf/er/Johannesson91 conf/ride/Johannesson93 conf/caise/Johannesson93 ... journals/tse/LarsonNE89 books/sp/Lloyd87 journals/tse/Motro87 ... journals/csur/PeckhamM88 journals/csur/ShethL90 conf/er/SongJB92 books/aw/Sowa84 journals/vldb/SpaccapietraPD92