1. V. I. Nefedov, Rentgenoelectronnaya spektroskopiya khimicheskikh soedinenii [X-Ray Electron Spectroscopy of Chemical Compounds], Khimiya, Moscow, 1984, 256 pp. (in Russian).
2. L. N. Mazalov, V. D. Yumatov, Elektronnoe stroenie ekstragentov [Electronic Structure of Extractants], Nauka, Novosibirsk, 1984, 200 pp. (in Russian).
3. V. I. Nefedov, V. I. Vovna, Elektronnaya struktura organicheskikh i elementoorganicheskikh soedinenii [Electronic Structure of Organic and Organoelement Compounds], Nauka, Moscow, 1989, 199 pp. (in Russian).
4. V. I. Vovna, Elektronnaya struktura organicheskikh soedinenii [Electronic Structure of Organic Compounds], Nauka, Moscow, 1991, 247 pp. (in Russian).
5. A. A. Bakke, H.-W. Chen, W. L. Jolly, J. Electron Spectrosc., 1980, 20, 333.