1. Lectures on functional equations and their application;Aczél,1966
2. Human color vision;Boynton,1980
3. Two more visual theorems;Brindley;Quarterly Journal of Experimental Psychology,1960
4. The taste sense and the relative sweetness of sugars and other sweet substances;Cameron,1947
5. Brightness of isolated coloured lights;Cavonius;Journal of the Optical Society of America,1973