 In April 2011, a study was published by Adam Brown of Brigham Young University in the journal "PS Political Science & Politics" which examined "thousands of Wikipedia articles about candidates, elections, and officeholders".The study found that while information in these articles tended to be accurate, the articles examined contained many errors of omission.A 2012 study co-authored by Shane Greenstein examined a decade of Wikipedia articles on United States politics and found that the more contributors there were to a given article, the more neutral it tended to be, in line with a narrow interpretation of Linus's law.