Kyng, M. (1983).
DESIGN OF ALTERNATIVES/ALTERNATIVE DESIGN. I U. Briefs, C. Ciborra & L. Schneider (red.),
Systems Design For, With, and by the Users: Proceedings of the IFIP WG 9.1 Working Conference on Systems Design For, With, and by the Users, Riva Del Sole, Italy, 20-24 September 1982 (s. 391-394). North-Holland Publ Co.