Evaluating the Usability of System-Generated and User-Generated Passwords of Approximately Equal Security. - Sourav Bhuyan; Joel S. Greenstein; Kevin A. Juang (HCI (27), 2013)

Integrating Visual Mnemonics and Input Feedback With Passphrases to Improve the Usability and Security of Digital Authentication. - Kevin A. Juang; Joel S. Greenstein (Hum. Factors, 2018)