1. Melanins and Melanogenesis;Prota,1992
2. Regulation of melanin formation;Hearing,1998
3. The pigments of reddish hair and feathers;Thomson;Angew. Chem., Int. Ed. Engl.,1974
4. The chemistry of melanins and related metabolites;Prota,1998
5. 5-S-Cysteinyl-DOPA and trichochromes in red feathers;Agrup;Acta Derm.-Venereol.,1978