Examples of Chow Chow Colors
http://www.chowwelfare.com/cciw/chowcolor.htm

Colours and coat types
http://www.chowchowclub.co.za/breed-info/colours-coat.htm

Color breeding
http://www.xin-feng.nl/en/535e-chowcolor.html

Chow Chow Coat Color, Based on DNA
http://homepage.usask.ca/~schmutz/ChowColor.html

Color genes A, E and K
http://xin-feng.nl/en/520e-dogcolor.html

Genetics of Coat Color and Type in Dogs
http://homepage.usask.ca/~schmutz/dogcolors.html

An outline of colour breeding, by Mona Selbach
https://www.thechowchowclub.co.uk/coats.htm