1. Trajectories of five-link mechanism;Dobrovolski;Works of Machine-Tool Institute,1938
2. Apprxomate synthesis of jointed mechanisms with two degrees of freedom;Levitski;Works of the Machine-Building Institute,1961
3. The problem of space mechanisms' positions with several degrees of freedom and its solution by methods of clased vector profile;Ovakimov;Mekh. Mashinost.,1971
4. The study of plane five-link mechanisms with two degrees of mobility;Tavkhelidze,1972