Giuliano Antoniol Yann-Gaël Guéhéneuc Ettore Merlo Paolo Tonella Mining the Lexicon Used by Programmers during Sofware Evolution. 14-23 2007 ICSM http://dx.doi.org/10.1109/ICSM.2007.4362614 conf/icsm/2007 db/conf/icsm/icsm2007.html#AntoniolGMT07