Peter Y. A. Ryan Berry Schoenmakers E-Voting and Identity, Second International Conference, VOTE-ID 2009, Luxembourg, September 7-8, 2009. Proceedings 5767 2009 http://dx.doi.org/10.1007/978-3-642-04135-8 978-3-642-04134-1 VOTE-ID Lecture Notes in Computer Science Springer db/conf/voteid/voteid2009.html