@article{DBLP:journals/pvldb/FakasCM11, author = {Georgios John Fakas and Zhi Cai and Nikos Mamoulis}, title = {Size-l Object Summaries for Relational Keyword Search}, journal = {PVLDB}, volume = {5}, number = {3}, year = {2011}, pages = {229-240}, ee = {http://www.vldb.org/pvldb/vol5/p229_georgiosjfakas_vldb2012.pdf}, bibsource = {DBLP, http://dblp.uni-trier.de} }