Measuring the economic value of information systems. - Bert van Wegen; Robert de Hoog (J. Inf. Technol., 1996)

A Framework to Create Performance Indicators in Knowledge Management. - Rajkumar Roy; Francisco M. del Rey; Bert van Wegen; Andy Steele (PAKM, 2000)

A framework to create key performance indicators for knowledge management solutions. - Francisco M. del-Rey-Chamorro; Rajkumar Roy; Bert van Wegen; Andy Steele (J. Knowl. Manag., 2003)