Helen Bergen

发表

Ed Dawson, Andrew J. Clark, Helen Bergen, 1996, Cryptologia.

Ed Dawson, Helen Bergen, Caroline Allinson, 1993, Comput. Secur..

Helen Bergen, W. J. Caelli, 1991, Cryptologia.

Helen Bergen, Robert Thornton, Tom Meehan, 2002, International journal of mental health nursing.

Helen Bergen, Jayne Cooper, Navneet Kapur, 2007, Clinical practice and epidemiology in mental health : CP & EMH.