Advances in Databases 15th British National Conference on Databases, BNCOD 15 London, United Kingdom, July 7 - 9, 1997 - Small, Carol; Small, Carol; Douglas, Paul; Douglas, Paul; Johnson, Roger; Johnson, Roger; King, Peter; King, Peter; Martin, Nigel; Martin, Nigel (Springer Berlin Heidelberg : Imprint: Springer, 1997)