C. G. Zinovieva, M. V. Kuznetsova, T. V. Dorfman, P. V. Limarev, and J. A. Limareva, “STUDY OF EXTERNAL AND INTERNAL FACTORS AFFECTING ENTERPRISE’S STABILITY”, Adv Syst Sci Appl, vol. 16, no. 1, pp. 62–71, Mar. 2016.