1. I. V. Vasil'ev and A. V. Nosov, in: Transactions of the Chemical Engineering Scientific Research Institute [in Russian), No. 26, Moscow (1958).
2. B. A. Golubev and B. A. Ershov, Typical Designs of Mechanisms in Chemical Engineering [in Russian], Mashinostroenie, Moscow-Leningrad (1966).
3. I. P. Gasyuk, Technology of Heavy Papermaking Equipment [in Russian], Mashinostroenie, Moscow (1965).
4. B. A. Ershov, Mashinostroitel', No. 5 (1968).
5. I. M. Kucher, in: Transactions of Seminar on the Theory of Mechanisms and Machines [in Russian], Izd. Akad. Nauk SSSR, Moscow (1958).