Distributed Concurrency Control in Database Systems. - Rudolf Bayer; Klaus Elhardt; Hans Heller; Angelika Reiser (VLDB, 1980)

Dynamic Timestamp Allocation for Transactions in Database Systems. - Rudolf Bayer; Klaus Elhardt; Johannes Heigert; Angelika Reiser (DDB, 1982)

Das Datenbank-Cache: Entwurfsprinzipien, Algorithmen, Eigenschaften. - Klaus Elhardt (1982)

Verteilte Datenbanksysteme. Eine Übersicht über den heutigen Entwicklungsstand. - Rudolf Bayer; Klaus Elhardt; Werner Kießling; Dieter Killar (Inform. Spektrum, 1984)

A Database Cache for High Performance and Fast Restart in Database Systems. - Klaus Elhardt; Rudolf Bayer (ACM Trans. Database Syst., 1984)

Integrating the UB-Tree into a Database System Kernel. - Frank Ramsak; Volker Markl; Robert Fenk; Martin Zirkel; Klaus Elhardt; Rudolf Bayer (VLDB, 2000)

The Transbase Hypercube RDBMS: Multidimensional Indexing of Relational Tables. - Volker Markl; Frank Ramsak; Roland Pieringer; Robert Fenk; Klaus Elhardt; Rudolf Bayer (ICDE Demo Sessions, 2001)

Processing Star Queries on Hierarchically-Clustered Fact Tables. - Nikos Karayannidis; Aris Tsois; Timos K. Sellis; Roland Pieringer; Volker Markl; Frank Ramsak; Robert Fenk; Klaus Elhardt; Rudolf Bayer (VLDB, 2002)

Transbase: a Leading-edge ROLAP Engine Supporting Multidimensional Indexing and Hierarchy Clustering. - Roland Pieringer; Klaus Elhardt; Frank Ramsak; Volker Markl; Robert Fenk; Rudolf Bayer (BTW, 2003)

Combining Hierarchy Encoding and Pre-Grouping: Intelligent Grouping in Star Join Processing. - Roland Pieringer; Klaus Elhardt; Frank Ramsak; Volker Markl; Robert Fenk; Rudolf Bayer; Nikos Karayannidis; Aris Tsois; Timos K. Sellis (ICDE, 2003)