1. Zadumkin, S.N. and Khokonov, Kh.B., Fiz. Met. Metalloved., 1962, vol. 13, no. 5, p. 658.
2. Zadumkin, S.N., Fiz. Met. Metalloved., 1962, vol. 13, no. 1, p. 24.
3. Shcherbakov, L.M., Poverkhnostnye yavleniya v rasplavakh i protsessakh poroshkovoi metallurgii (Surface Phenomena in Melts and Powder Metallurgy Processes), Kiev: Izd. AN USSR, 1963, p. 38.
4. Shcherbakov, L.M., Samsonov, V.M., and Lebed’, A.V., Fizika mezhfaznykh yavlenii i protsessov vzaimodeistviya potokov chastits s tverdymi telami (Physics of Interphase Phenomena and of Particles Flows Interaction with Solids), Nalchik: Izd. KBGU, 1998, p. 11.
5. Zhang, J.-M., Ma, F., and Xu, K.-W., Appl. Surf. Sci., 2004, vol. 229,issues 1–4, p. 34.