%0 Journal Article %J Inf. Syst. %D 2009 %T A constraint-based querying system for exploratory pattern discovery %A Francesco Bonchi %A Fosca Giannotti %A Claudio Lucchese %A Salvatore Orlando %A Raffaele Perego %A Roberto Trasarti %B Inf. Syst. %V 34 %P 3-27