Performative, Informative and Emotive Systems The First Piece of the PIE. - Steven O. Kimbrough; Ronald M. Lee; David Ness (ICIS, 1984)

A Unified Model of Product Service Systems Representation. - Lujing Yang; Ke Xing; David Ness (Int. J. Serv. Sci. Manag. Eng. Technol., 2013)