Battersby, A.R., Fookes, C.J.R., Matcham, G.W.J. and McDonald, E. (1980). „Biosynthesis of the pigments of life: formation of the macrocycle”. Nature285: 17-21. PMID6769048.
Tsai, S.-F., Bishop, D.F. and Desnick, R.J. (1987). „Purification and properties of uroporphyrinogen III synthase from human erythrocytes”. J. Biol. Chem.262: 1268-1273. PMID3805019.
