J. Holman

The SoundsRight CAPTCHA: an improved approach to audio human interaction proofs for blind users

Jonathan Lazar, Jinjuan Feng, Brian Wentz, 2012, CHI.

Developing usable CAPTCHAs for blind users

Jonathan Lazar, John D'Arcy, Jonathan Holman, 2007, Assets '07.

Accessible privacy and security: a universally usable human-interaction proof tool

Harry Hochheiser, Jonathan Lazar, Jinjuan Feng, 2010, Universal Access in the Information Society.