SpringerLink (Online service), Scholl, M., & Voisard, A. (1997). Advances in Spatial Databases: 5th International Symposium, SSD'97, Berlin, Germany, July 15-18, 1997 Proceedings (1st ed. 1997.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/3-540-63238-7
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Michel Scholl, και Agnes Voisard. Advances in Spatial Databases: 5th International Symposium, SSD'97, Berlin, Germany, July 15-18, 1997 Proceedings. 1st ed. 1997. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 1997. https://doi.org/10.1007/3-540-63238-7.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Advances in Spatial Databases: 5th International Symposium, SSD'97, Berlin, Germany, July 15-18, 1997 Proceedings. 1st ed. 1997. Springer Berlin Heidelberg : Imprint: Springer, 1997. https://doi.org/10.1007/3-540-63238-7.
