Christian Rullang, Eike Emrich, & Christian Pierdzioch. (2017). Why do referees end their careers and which factors determine the duration of a referee's career? Bern Open Publishing.
Chicago Style (17th ed.) CitationChristian Rullang, Eike Emrich, and Christian Pierdzioch. Why Do Referees End Their Careers and Which Factors Determine the Duration of a Referee's Career? Bern Open Publishing, 2017.
MLA (9th ed.) CitationChristian Rullang, et al. Why Do Referees End Their Careers and Which Factors Determine the Duration of a Referee's Career? Bern Open Publishing, 2017.
Warning: These citations may not always be 100% accurate.