@book{henderson_1997, title={I, Elvis: Confessions of a counterfeit king}, ISBN={1572972556}, publisher={New York: Boulevard Books}, author={Henderson, W. M.}, year={1997} }
 @book{henderson_1997, title={Stark raving Elvis}, ISBN={0425159353}, publisher={New York, NY: Berkley Books}, author={Henderson, W. M.}, year={1997} }
 @book{henderson_1995, title={I killed Hemingway}, ISBN={0312119259}, publisher={New York: Picador USA}, author={Henderson, W. M.}, year={1995} }
 @book{henderson_1993, title={I killed Hemingway}, publisher={New York: St Martin's Press}, author={Henderson, William McCranor}, year={1993} }