@Article {cdf.jcs97,
author = {S. Castano and S. {De Capitani di Vimercati} and {M.G.} Fugini},
title = {Automated Derivation of Global Authorizations for Database Federations},
journal = {Journal of Computer Security (JCS)},
volume = {5},
number = {4},
pages = {271-301},
year = {1997}
}