1. M.L. Novikov, Gear Pairs and Cam Mechanisms Having Point System of Meshing. National Classification 47h, 6; Pat. USSR, No. 109,113, Filed: April 19, 1956, published in Bull. of Inventions No.10, 1957.
2. Theory of Novikov Gearing;Krasnoschokov,1976
3. Pat. USA, No. 1,601,750, Helical Gearing, /E. Wildhaber, Patented: October 5, 1926, Filed: November 2, 1923.
4. M.L. Novikov, Fundamentals of Geometric Theory of Gearing with Point Meshing for High Power Density Transmissions, Doctoral Thesis, Moscow, Zhukovskii Military Aviation Engineering Academy, 1955.
5. Gearing with a Novel Type of Teeth Meshing;Novikov,1958