Gustavo Rossi Silvia E. Gordillo Fernando Lyardet A Pattern-Oriented Approach to Enhance Context Infrastructures. 170-173 2005 conf/saint/2005w SAINT Workshops http://csdl.computer.org/comp/proceedings/saint-w/2005/2263/00/22630170abs.htm db/conf/saint/saint2005w.html#RossiGL05