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Fuller, Jerry Bryan; Hester, Kim; Barnett, Tim; Frey, Len; Relyea, Clint; Beu, Danielle.

Human Relations. Jun2006, Vol. 59 Issue 6, p815-846.

I warn you because I like you: Voice behavior, employee identifications, and transformational leadership

Wu Liu, Renhong Zhu, Yongkang Yang

The Leadership Quarterly, Volume 21, Issue 1, February 2010, Pages 189-202