Cognitive, associative and conventional passwords: Recall and guessing rates. - Julie Bunnell; John Podd; Ron Henderson; Renee Napier; James Kennedy-Moffat (Comput. Secur., 1997)

Word Association Computer Passwords: The Effect of Formulation Techniques on Recall and Guessing Rates. - Rachael Pond; John Podd; Julie Bunnell; Ron Henderson (Comput. Secur., 2000)