Riza Aditya Colin Boyd Ed Dawson Kapali Viswanathan Secure e-Voting for Preferential Elections. 246-249 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2739&spage=246 2003 conf/egov/2003 EGOV db/conf/egov/egov2003.html#AdityaBDV03