1. Economic Origins of Dictatorship and Democracy;Acemoglu,2006
2. What the numbers say: a digit-based test for election fraud;Beber;Political Analysis,2012
3. The Hidden History of the Secret Ballot;Bertrand,2007
4. Electoral Malpractice;Birch,2012
5. Student selection of random digits;Boland;Journal of the Royal Statistical Society: Series D (The Statistician),2000