1. GOST (State Standard) no. 1643-81: Cylindrical Gear Transmissions: Tolerances, 1981.
2. GOST (State Standard) no. 21354-87: Cylindrical Involute Gear Transmissions: Strength Calculations, 1988.
3. Korotkin, V.I., Kolosova, E.M., and Sukhov, D.Yu., The Tooth’s Form Factor in Calculating the Fracture Strength of Cylindrical Involute Gears with Local Contact, Izv. Vyssh. Uchebn. Zaved., Sev.-Kav. Region, Tekhn. Nauki, 2009, no. 5, pp. 78–84.
4. Korotkin, V.I., Onishkov, N.P., and Kharitonov, Yu.D., Zubchatye peredachi Novikova. Dostizheniya i razvitie (Novikov Gear Transmissions: Accomplishments and Development), Moscow: Mashinostroenie-1, 2007.
5. Bulgakov, E.B., Zubchatye peredachi modifitsirovannogo iskhodnogo reechnogo kontura (Gear Transmissions with a Modified Initial Rack Contour), Moscow: Mashgiz, 1962.