Weichmann, H., Meunierpiret, J., & Vanmeerssche, M. (1986). Structural Aspects of Cyclic Triorganotin Dithiophosphinates - Crystal-structure of [me2snsp(s)(ph)ch2ch2]-hmpt. Journal of Organometallic Chemistry, 309(3), 273-282. https://doi.org/10.1016/S0022-328X(00)99627-X (Original work published 1986)