Semantically enhanced user modeling. - Palakorn Achananuparp; Hyoil Han; Olfa Nasraoui; Roberta Johnson (SAC, 2007)

How Facebook Might Reveal Users' Attitudes Toward Work and Relationships with Coworkers. - Hui-Tzu Grace Chou; Ron J. Hammond; Roberta Johnson (Cyberpsychology Behav. Soc. Netw., 2013)