1. Apel, M., 2004. A 3d geoscience information system framework. Ph.D. Dissertation, École Supérieure de Géologie, Institut National Polytechnique de Lorraine, Nancy, France, 93pp.
2. From 3d geomodelling systems towards 3d geoscience information systems: data model, query functionality and data management;Apel;Computers & Geosciences,2006
3. Balovnev, O., Breunig, M., Cremers, A.B., 1997. From GeoStore to GeoToolKit: the second step. In: Proceedings of the Fifth International Symposium on Spatial Databases, Berlin, Lecture Notes in Computer Science 1262, Springer, Berlin, pp. 223–237.
4. Bédard, K., 2006. La construction de modèles géologiques 3D à l’ère de la normalisation (3D geological model construction in the standardization era). M.Sc. Thesis, Département des Sciences Géomatiques, Université Laval, Québec City, Canada, 119pp.
5. The dimensional model: a framework to distinguish spatial relationships;Billen,2002