Julio Cesar Sampaio do Prado Leite Vera Werneck Antonio de Pádua Albuquerque Oliveira Claudia Cappelli Ana Luiza A. Cerqueira Herbet de Souza Cunha Bruno González-Baixauli Understanding the Strategic Actor Diagram: an Exercise of Meta Modeling. 2-12 2007 WER http://wer.inf.puc-rio.br/WERpapers/artigos/artigos_WER07/Cwer07-leite01.pdf conf/wer/2007 db/conf/wer/wer2007.html#LeiteWOCCCG07