Elena Valari, Maria Kontaki, Apostolos N. Papadopoulos. Discovery of Top-k Dense Subgraphs in Dynamic Graph Collections. In Anastasia Ailamaki, Shawn Bowers, editors, Scientific and Statistical Database Management - 24th International Conference, SSDBM 2012, Chania, Crete, Greece, June 25-27, 2012. Proceedings. Volume 7338 of Lecture Notes in Computer Science, pages 213-230, Springer, 2012.