1. The theory of meshing of envelopes of two-parameters family of surfaces;Krylov;Izvestia Vuzov. Mashinostrojenije Moscow,1963
2. On the question of gearing synthesis with point contact;Erikhov,1966
3. The application of the kinematic method for calculation of the curvature and non-undercutting of the envelope of two-parameter family of generating surfaces;Litvin,1965
4. Theory of Toothed Gearings;Litvin,1968
5. Synthesis of toothed gearing with condition of insensibility to assembly errors;Erikhov,1969