@Article{	  Wyszecki71,
author = {G. Wyszecki and G. H. Fielder}, title = {New Color-Matching Ellipses}, journal = {Journal of the Optical Society of America}, year = {1971}, volume = {61}, number = {9}, month = sep, pages = {1135--1152}, theme = {vision,perception,ecarts,apparence,colorimetrie}
}