KONSTANTINOU, NIKOLAOS, DIMITRIOS-EMMANUEL SPANOS, and NIKOLAS MITROU. “ONTOLOGY AND DATABASE MAPPING: A SURVEY OF CURRENT IMPLEMENTATIONS AND FUTURE DIRECTIONS”. Journal of Web Engineering 7, no. 1 (August 28, 2008): 001–024. Accessed July 20, 2024. https://journals.riverpublishers.com/index.php/JWE/article/view/4097.