Vishnu: an object-oriented database management system supporting software engineering. - D. J. Moore; Pamela A. Drew; Murthy Ganti; Rodolphe J. Nassif; Sunil Podar; David H. Taenzer (COMPSAC, 1988)

Vishnu: An Object-Oriented Database Management System Supporting Rapid Prototyping. - Pamela A. Drew; Murthy Ganti; D. J. Moore; Rodolphe J. Nassif; Sunil Podar; David H. Taenzer (SIGMOD Conference, 1988)

Incorporating a Model Hierarchy into the ER Paradigm. - Jianhua Zhu; Rodolphe Nassif; Pankaj Goyal; Pamela A. Drew; Bertil Askelid (ER, 1990)