Clark, Robin J.H.; Cridland, Lucas; Kariuki, Benson M.; Harris, D.M.; Withnal, Robert. 1995. Synthesis, Structural Characterization and Raman Spectroscopy of the Inorganic Pigments Lead Tin Yellow Types I and II and Lead Antimonate Yellow: Their Identification on Medieval Paintings and Manuscripts. Journal of the Chemical Society, Dalton Transactions (16): 2577–2582. doi:10.1039/DT9950002577