Alban Gabillon Manuel Munier Jean-Jacques Bascou Laurent Gallon Emmanuel Bruno An Access Control Model for Tree Data Structures. 117-135 2002 conf/isw/2002 ISC http://link.springer.de/link/service/series/0558/bibs/2433/24330117.htm db/conf/isw/isc2002.html#GabillonMBGB02