1. Identification of colour appearance in spatial situations. Göteborg: Chalmers Univ Tech; 1996.
2. Appearance in colour perception. In: AIC Colour 93, Proc 7th Cong Inter Col Assoc, Budapest, 1993, p 39-43. (I refer to both what Sève said in his speech, and to this article.)
3. The identification of colour in spatial situations. Dissertation. Göteborg: Chalmers Univ Tech; 1996. p 37, 44.
4. The measurement of appearance. New York: John Wiley & Sons; 1984. p 265.