@phdthesis{instance1544,
	 title = {{Access control in object-oriented federated database systems}},
	 author = {Dirk Jonscher},
	 year = {1998},
	 school = {University of Zurich, Department of Informatics},
	 Date-Added = {2026-08-02 22:38:36},
	 Date-Modified = {2026-08-03 07:32:24}
}