Evaluating Strategic IT Investments: An Assessment of Investment Alternatives for a Web Content Management System. - Petri Hallikainen; Hannu Kivijärvi; Kari Nurmimäki (HICSS, 2002)

A Framework for Evaluating Strategic IT Investments. Establishing Priorities for WCM Investment Alternatives. - Petri Hallikainen; Hannu Kivijärvi; Kari Nurmimäki (J. Decis. Syst., 2006)

User Influence in E-Service Evolution: A Case Study of E-Banking. - Hilkka Merisalo-Rantanen; Matti Rossi; Petri Hallikainen; Kari Nurmimäki (Commun. Assoc. Inf. Syst., 2009)