Estonia: Supreme Court Rejects Last Voter Complaint, ERR News (2011)
The article discusses a possible flaw in the Estonian e-voting system. The Supreme Court of Estonia has ruled that nullification of the election results was not required despite of a petition from a student discovering the flaw.
The link address is: http://news.err.ee/Politics/bbb598aa-586b-4981-9f7e-88273b5a25c0