Assessing the Cost-Effectiveness of Inspections by Combining Project Data and Expert Opinion. - Lionel C. Briand; Bernd G. Freimut; Ferdinand Vollei (ISSRE, 2000)

Using multiple adaptive regression splines to support decision making in code inspections. - Lionel C. Briand; Bernd G. Freimut; Ferdinand Vollei (J. Syst. Softw., 2004)

Determining Inspection Cost-Effectiveness by Combining Project Data and Expert Opinion. - Bernd G. Freimut; Lionel C. Briand; Ferdinand Vollei (IEEE Trans. Software Eng., 2005)