GOM: A Strongly Typed Persistent Object Model With Polymorphism. - Alfons Kemper; Guido Moerkotte; Hans-Dirk Walter; Andreas Zachmann (BTW, 1991)

Multiple Substitutability Without Affecting the Taxonomy. - Guido Moerkotte; Andreas Zachmann (EDBT, 1992)

Objekte in multiplen Repräsentationen. - Kai Bruns; Christoph Kilger; Donald Kossmann; Guido Moerkotte; Hans-Dirk Walter; Andreas Zachmann (Datenbank Rundbr., 1992)

Towards More Flexible Schema Management in Object Bases. - Guido Moerkotte; Andreas Zachmann (ICDE, 1993)

Integrierter Objektbankentwurf in der Produktmodellierung. - Christoph Kilger; Peter C. Lockemann; Hans-Dirk Walter; Andreas Zachmann (Informationstechnik Tech. Inform., 1995)

Typsichere Objektbankmigration. - Andreas Zachmann (Infix, 1997)