@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}
 }