[1] Haroldson, M.A.. 2005. Unduplicated Feales Pages 11-16 in C.C. Schwartz, M.A. Haroldson, and K. West, editors. Yellowstone grizzly bear investigations: annual report of the INteragency Grizzly Bear Study Team, 2004. USGS, Bozeman, Montana.
[2] Haroldson, M.A., and K. Frey. 2005. Grizzly Bear Mortalities. Pages 24-29 in C.C. Schwartz, M.A. Haroldson, and K. West, editors. Yellowstone grizzly bear investigations: annual report of the INteragency Grizzly Bear Study Team, 2004. USGS, Bozeman, Montana.