Journal of Organic Chemistry, , vol. 20, p. 387 Hakko Kogaku Zasshi, , vol. 50, p. 79 - 85 Journal of Organometallic Chemistry, , vol. 1, p. 360 - 365 Functionally Substituted Organotin Compounds, Tin Res. Inst., Greenford 1958, pp. 1/128