The O2 Object Manager: an Overview. - Fernando Vélez; Guy Bernard; Vineeta Darnis (VLDB, 1989)

Implementing the O2 Object Manager: Some Lessons. - Fernando Vélez; Vineeta Darnis; David J. DeWitt; Philippe Futtersack; Gilbert Harrus; David Maier 001; Michel Raoux (POS, 1990)

The O2 Object Manager: An Overview. - Fernando Vélez; Guy Bernard; Vineeta Darnis (Building an Object-Oriented Database System, The Story of O2, 1992)