1. Badard T, Lemarié C. Propagating updates between geographic databases with different scales. chapter 10. In: Atkinson P, Martin D, editors. Innovations in GIS 7: GIS and geo computation. London: Taylor and Francis; 2000. p. 135–46.
2. Bédard Y, Bernier E. Supporting multiple representations with spatial view management and the concept of VUEL. In: Proceedings joint workshop on multi-scale representations of spatial data. 2002.
3. Borges K, Davis CA, Laender A. OMT-G: an object-oriented data model for geographic applications. Geo Informatica. 2001;5(3):221–60.
4. Devogele T, Parent C, Spaccapietra S. On spatial database integration. Int J Geogr Inf Syst. 1998;12(4):335–52.
5. Friis-Christensen A, Jensen CS, Nytun JP, Skogan D. A conceptual schema language for the management of multiple representations of geographic entities. Trans GIS. 2005;9(3):345–80.