Heuristic evaluations at bell labs: analyses of evaluator overlap and group session. - Xerxes P. Kotval; Cheryl L. Coyle; Paulo A. Santos; Heather Vaughn; Rebecca Iden (CHI Extended Abstracts, 2007)

Social networking: Communication revolution or evolution? - Cheryl L. Coyle; Heather Vaughn (Bell Labs Tech. J., 2008)