Rory O'Connor Jan Pries-Heje Richard Messnarz Systems, Software and Service Process Improvement - 18th European Conference, EuroSPI 2011, Roskilde, Denmark, June 27-29, 2011. Proceedings 172 2011 http://dx.doi.org/10.1007/978-3-642-22206-1 978-3-642-22205-4 EuroSPI Communications in Computer and Information Science Springer db/conf/eurospi/eurospi2011.html