TY - JOUR T1 - Towards mega-modeling: a walk through data analysis experiences JF - {SIGMOD} Record Y1 - 2013 A1 - Stefano Ceri A1 - Themis Palpanas A1 - Emanuele Della Valle A1 - Dino Pedreschi A1 - Johann-Christoph Freytag A1 - Roberto Trasarti VL - 42 UR - http://doi.acm.org/10.1145/2536669.2536673 ER -