Fernando Antonio Basile Colugnati Lia Carrari Rodrigues Lopes Saulo Faria Almeida Barretto Digital Ecosystems - Third International Conference, OPAALS 2010, Aracuju, Sergipe, Brazil, March 22-23, 2010, Revised Selected Papers 67 2010 http://dx.doi.org/10.1007/978-3-642-14859-0 978-3-642-14858-3 OPAALS Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering Springer db/conf/opaals/opaals2010.html