Kutsenko, T., and D. Nasiedkin. “Performance of the Combined Test With the Tasks of Stroop, Poffenberger, Sperry in the Forced and Voluntary Regimes”. Cherkasy University Bulletin: Biological Sciences Series, no. 1, July 2018, pp. 62-69, https://bio-ejournal.cdu.edu.ua/article/view/2799.