Giovanni Mella Elena Ferrari Elisa Bertino Yunhua Koglin Controlled and cooperative updates of XML documents in byzantine and failure-prone distributed systems. 421-460 2006 9 ACM Trans. Inf. Syst. Secur. 4 http://doi.acm.org/10.1145/1187441.1187443 db/journals/tissec/tissec9.html#MellaFBK06