Multi-Level Recovery. - Gerhard Weikum; Christof Hasse; Peter Brössler; Peter Muth (PODS, 1990)

A Performance Evaluation of Multi-Level Transaction Management. - Christof Hasse; Gerhard Weikum (VLDB, 1991)

Semantic Concurrency Control in Object-Oriented Database Systems. - Peter Muth; Thomas C. Rakow; Gerhard Weikum; Peter Brössler; Christof Hasse (ICDE, 1993)

The COMFORT Project (Synopsis). - Gerhard Weikum; Christof Hasse; Axel Mönkeberg; Michael Rys; Peter Zabback (PDIS, 1993)

The COMFORT Prototype: A Step Toward Automated Database Performance Tuning. - Axel Mönkeberg; Peter Zabback; Christof Hasse; Gerhard Weikum (SIGMOD Conference, 1993)

Multi-Level Transaction Management for Complex Objects: Implementation, Performance, Parallelism - Gerhard Weikum; Christof Hasse (VLDB J., 1993)

The COMFORT Automatic Tuning Project, Invited Project Review. - Gerhard Weikum; Christof Hasse; Alex Moenkeberg; Peter Zabback (Inf. Syst., 1994)

Inter- und Intratransaktionsparallelität in Datenbanksystemen: Entwurf, Implementierung und Evaluation eines Datenbanksystems mit Inter- und Intratransaktionsparallelität - Christof Hasse (1995)

Inter- and Intra-Transaction Parallelism for Combined OLTP/OLAP Workloads. - Christof Hasse; Gerhard Weikum (Advanced Transaction Models and Architectures, 1997)

Self-tuning Database Technology and Information Services: from Wishful Thinking to Viable Engineering. - Gerhard Weikum; Axel Mönkeberg; Christof Hasse; Peter Zabback (VLDB, 2002)

Extending Upper Ontology Partitions to Address Contextually Determined Concepts. - Michael G. Bennett; Christof Hasse; Maxwell R. Gillmore (JOWO, 2017)