1. Bercha, D.M., Voroshilov, Yu.V., Slivka, V.Yu., and Turyanitsa, I.D., Slozhnye khal’kogenidy i khal’kogalogenidy (poluchenie i svoistva) (Mixed Chalcogenides and Chalcohalides: Preparation and Properties), Lviv: Vishcha Shkola, 1983.
2. Schulte-Kellinghaus, M. and Krämer, V., Thermogravimetric Investigations of Some Thioorthophosphates and Thiohypodiphosphates, Thermochim. Acta, 1978, vol. 27, pp. 141–149.
3. Bogomolov, A.A., Solnyshkin, A.V., Kiselev, D.A., et al., Transient Short-Circuit Photocurrent in Films of the Ferroelectric Semiconductor Sn2P2S6, Fiz. Tverd. Tela (S.-Peterburg), 2006, vol. 48, no. 6, pp. 1121–1122.
4. Rybina, I.N., Lupeiko, T.G., Nesterov, A.A., and Svirskaya, S.N., Preparation of Tin(II) Hypothiodiphosphate, XIV Vserossiiskaya konferentsiya po fizike segnetoelektrikov (VKS-XIV) (XIV All-Russia Conf. on the Physics of Ferroelectrics: ACF-XIV), Ivanovo, 1995, p. 329.
5. Handbuch der präparativen anorganischen Chemie, von Brauer, G., Ed., Stuttgart: Ferdinand Enke, 1978, 3rd ed.