I'm doing a research work on Wikipedia, thanks to the API, I have got most of the data I need. But now I'm trying to assess user's reputation, and thus I need to get the deleted revisions of a user. However, API says I don't have permission to view deleted revision information. 
I really need this data, please help me.
Thanks a lot!

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Zhang Shiyue

Tel: +86 18801167900

E-mail: byryuer@gmail.com, yuer3677@163.com

State Key Laboratory of Networking and Switching Technology

No.10 Xitucheng Road, Haidian District

Beijing University of Posts and Telecommunications

Beijing, China.