1. A.D. Tomlenov, Theory of Plastic Deformation of Metals, Metallurgiya, Moscow, (1972).
2. Y. Bocharov, S. Kobayashi, E.G. Thomsen, The Mechanics of the Coining Process, Trans. ASME, Series B.Y. Eng. Ynd. 84 (1962) 491-501.
3. S.P. Demidov, Theory of Elasticity, Vysschaya shkola, Moscow, (1979).
4. N.N. Ogarkov, S.I. Platov, Ye.S. Shemetova, M.N. Samodurova, D.V. Terentyev, V.A. Nekit, Oil Absorption of Contact Surfaces in Metal Forming Processes, Metallurg. Issue 1 (2017) 79-82.
5. N.N. Ogarkov, Mathematical Description of Material Distribution in the Rough Layer of Contact Surfaces of the Deforming Tool, Dep. VINITI, Moscow, No. 2550-B.94.