Review "Outlaw Hillbilly" Bluegrass Today
http://bluegrasstoday.com/48010/outlaw-hillbilly-the-earl-brothers/

Review "Outlaw Hillbilly" Country Standard Time News Magazine
http://www.countrystandardtime.com/blog/FervorCouleeBluegrass/

entry.asp?xid=921

Review "Outlaw Hillbilly"  by Jerome Clark
http://www.rambles.net/earlbros_out12.html