Preserving semantics of the whole-part relationships in the object-relational databasesEessaar, Erki15th International Conference on Information Systems Development : Budapest, Hungary, 31 August - 2 September 20062006 / ? p https://link.springer.com/chapter/10.1007/978-0-387-70802-7_1 Preserving semantics of the whole-part relationships in the object-relational databasesEessaar, ErkiAdvances in Information Systems development. New Methods and practice for the Networked Society. 22007 / p. 1-11