1. Yu. L. Yur’ev, Charcoal: Handbook [in Russian], Sokrat, Ekaterinburg (2007), p. 184.
2. R. Loison, P. Foch, and A. Boyer, Coke [in French], Dunod, Paris (1970).
3. V. P. Zuev and V. V. Mikhailov, Carbon Black Production [in Russian], Khimiya, Moscow (1965), p. 330.
4. N. A. Karyakin, Searchlight and Projection Equipment [in Russian], Vysshaya Shkola, Moscow (1966), p. 411.
5. A. A. Chekanov, Nikolay Nikolayevich Benardos [in Russian], Nauka, Moscow (1983), p. 143.