Modellierung und Verwaltung hierarchisch strukturierter Informationen in relationalen Datenbanksystemen. - Roland Pieringer; Volker Markl; Rudolf Bayer (Grundlagen von Datenbanken, 2000)

HINTA: A Linearization Algorithm for Physical Clustering of Complex OLAP Hierarchies. - Roland Pieringer; Volker Markl; Frank Ramsak; Rudolf Bayer (DMDW, 2001)

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)

Modeling and implementing multidimensional hierarchically structured data for data warehouses in relational database management systems and the implementation into transbase. - Roland Pieringer (2003)

Towards Truly Extensible Database Systems. - Ralph Acker; Roland Pieringer; Rudolf Bayer (DEXA, 2005)