1. Fedorov, V.A., Fedorova, A.V., Nifant’eva, G.G., et al., Complexes of Lead(II) Perchlorate and Cadmium Perchlorate with Thiourea and Its Phenol Derivatives, Zh. Neorg. Khim., 1973, vol. 18, no. 12, pp. 3341–3343.
2. Gyunner, E.A. and Orlyanskaya, A.K., Thiourea Compounds with Sparingly Soluble Pb Salts, Ukr. Khim. Zh. (Russ. Ed.), 1972, vol. 39, no. 9, pp. 882–885.
3. Naumov, A.V., Semenov, V.N., and Averbakh, E.M., Thiourea Complexes in Synthesis of Metal Sulfides, Khim. Prom-st. (Moscow), 2003, vol. 80, no. 2, pp. 17–26.
4. Najdoski, M., Minceva-Sukarova, B., Drake, A., et al., Optical Properties of Thin Solid Films of Lead Sulfide, J. Mol. Struct., 1995, vol. 349, pp. 85–88.
5. Markov, V.F. and Maskaeva, L.N., Lead-Sulfide-Based Semiconductor Gas Sensor for Nitrogen Oxides, Zh. Anal. Khim., 2001, vol. 56, no. 8, pp. 846–850.