New Methods for Topological Clustering and Spatial Access in Object-Oriented 3D Databases. - Martin Breunig; Armin B. Cremers; Wolfgang Müller 006; Jörg Siebeck (ACM-GIS, 2001)

Spatio-temporal database support for long-period scientific data. - Martin Breunig; Armin B. Cremers; Serge S. Shumilov; Jörg Siebeck (Data Sci. J., 2003)

Concepts for the representation, storage, and retrieval of spatio-temporal objects in 3D/4D Geo-Information-Systems. - Jörg Siebeck (2003)

Selected Spatio-Temporal Data Types and Operations for a 3D/4D Geological Information System. - Jörg Siebeck; Serge S. Shumilov; Armin B. Cremers; Martin Breunig; Andreas Thomsen (SSDBM, 2004)

The Story of the GeoToolKit - An Object-Oriented Geodatabase Kernel System. - Oleg T. Balovnev; Thomas Bode; Martin Breunig; Armin B. Cremers; Wolfgang Müller 006; Gleb Pogodaev; Serge S. Shumilov; Jörg Siebeck; Agemar Siehl; Andreas Thomsen (GeoInformatica, 2004)