Schwabe D., Caloini A., Garzotto F. et al. Hypertext developing using a model-based approach // Software — Practice and Experience.-1992.-v.22.-N 11.-P. 937–962.
Wu X., Ichikawa T. KDA: a knowledge-based database assistant with a query guiding facility // IEEE Transactions on Knowledge and Data Engineering.-1992.-v.4.-N 5.-P. 443–453.
Карев А. Расширенная сетевая модель данных MDBS III: плюсы и минусы // Монитор.-1993.-N 2.-С. 30–35.