Shahrezai Pakdaman, Ahmad, and Manouchehr Fadayan. “The Preparation and Reactions of Triphenyllead- and Triphenylgermanium Pentachlorophenoxides ”. Asian Journal of Chemistry, vol. 5, no. 2, Mar. 2010, pp. 287-90, https://asianpubs.org/index.php/ajchem/article/view/24804.