G. Bracha, and D. Ungar. Proceedings of the 19th annual ACM SIGPLAN conference on Object-oriented programming, systems, languages, and applications, ACM, (October 2004)
M. Odersky, and A. Moors. IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science, volume 4 of Leibniz International Proceedings in Informatics (LIPIcs), page 427--451. Dagstuhl, Germany, Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik, (2009)
Y. Lin, S. Blackburn, and D. Frampton. Proceedings of the 8th ACM SIGPLAN/SIGOPS conference on Virtual Execution Environments, page 181--190. New York, NY, USA, ACM, (2012)