1. Congruences connected with three-line latin rectangles;Carlitz;Proc. Amer. Math. Soc.,1953
2. M.N. Dobrovolsky, One generalization of the problem about the guests XXV scientific –pedagogical conference of mathematical departments of pedagogical institutes of Ural zone. Abstracts. Sverdlovsk, 1967, pp 11–13.
3. Solving one of combinatorial tasks;Dobrovolsky;Proc. Tula State Pedagog. Instit.,1954
4. On solution of one system of recurrent equations;Dobrovolsky;Proc. Tula State Pedagog. Instit.,1960
5. The Number of Permutations of Elements of n Pairs of Two Limitations of Positions, Vol. 5;Dobrovolsky,1966