Social ties and online word of mouth. - Erin M. Steffes; Lawrence E. Burgee (Internet Res., 2009)

Developing a measure of risk adjusted revenue (RAR) in credit cards market: Implications for customer relationship management. - Shweta Singh; B. P. S. Murthi; Erin Steffes (Eur. J. Oper. Res., 2013)