Repräsentation der für die Überwachung dynamischer Integritätsbedingungen notwendigen Information. - Klaus Hülsmann (Grundlagen von Datenbanken, 1989)

Representation of the Historical Information Necessary for Temporal Integrity Monitoring. - Klaus Hülsmann; Gunter Saake (EDBT, 1990)

Temporal Integrity Constraints in the Database Design Environment CADDY (Extended Abstract). - Klaus Hülsmann (FMLDO, 1990)

A Temporal-Logic-Based Query Language for Querying Database Histories. - Klaus Hülsmann (DEXA, 1991)

A Language for Specifying Static and Dynamic Integrity Constraints. - Uwe Hohenstein; Klaus Hülsmann (ER, 1991)

Theoretical Foundations of Handling Large Substitution Sets in Temporal Integrity Monitoring. - Klaus Hülsmann; Gunter Saake (Acta Informatica, 1991)

Conceptual modelling of database applications using extended ER model. - Gregor Engels; Martin Gogolla; Uwe Hohenstein; Klaus Hülsmann; Perdita Löhr-Richter; Gunter Saake; Hans-Dieter Ehrich (Data Knowl. Eng., 1992)