@conference {503, title = {Spatio temporal keyword-queries in Social Networs}, year = {2013}, author = {Vittoria Cozza and Antonio Messina and Danilo Montesi and Luca Arietta and Matteo Magnani} } @conference {DBLP:conf/fapr/MontesiRT96, title = {Using Temporary Integrity Constraints to Optimize Databases}, booktitle = {FAPR}, year = {1996}, pages = {430-435}, author = {Danilo Montesi and Chiara Renso and Franco Turini} }