1. Best Practice Guidelines on Publication Ethics: a publishers perspective;Graf;Int J Clin Pract,2007
2. A tale of two citations;Errami;Nature,2008
3. Entire-paper plagiarism caught by software;Butler;Nature,2008
4. Scientists behaving badly;Martinson;Nature,2005
5. Impact of covert duplicate publication on meta-analysis: a case study;Tramer;BMJ,1997