E. V. Chubaryan, R. M. Avakyan, G. G. Harutyunyan, and A. S. Piloyan, “UNIVERSE EVOLUTION IN THE EINSTEIN FRAME OF JORDAN–BRANS–DICKE THEORY”, Proc. YSU A: Phys. Math. Sci., vol. 44, no. 2 (222), pp. 49–54, Apr. 2010.