Pangni K, Atsé B C and Kouassi N J 2008: Effect of stocking density on growth and survival of the African catfish Chrysichthys nigrodigitatus, Claroteidae (Lacépède 1803) larvae in circular tanks. Volume 20, Article #100. Retrieved
, from http://www.lrrd.org/lrrd20/7/pang20100.htm