Oleg T. Balovnev, Thomas Bode, Martin Breunig, Armin B. Cremers, Wolfgang Müller, Gleb Pogodaev, Serge S. Shumilov, Jörg Siebeck, Agemar Siehl, Andreas Thomsen. The Story of the GeoToolKit - An Object-Oriented Geodatabase Kernel System. GeoInformatica, 8(1):5-47, 2004. [doi]
Abstract is missing.