Mark Burdon Juan Manuel González Nieto Sharon Christensen Ed Dawson W. D. Duncan Bill Lane Access Control in Federated Databases: How Legal Issues Shape Security. 228-239 2007 conf/egov/2007 EGOV http://dx.doi.org/10.1007/978-3-540-74444-3_20 db/conf/egov/egov2007.html#BurdonNCDDL07