Sahaydak, H. D., Filimonova, N. B. and Zyma, I. H. (2016) “Electrical activity of the human brain during testing mathematical intelligence for subtest ‘arithmetic operations’ of Amthauer test”, Cherkasy University Bulletin: Biological Sciences Series, 352(19). Available at: https://bio-ejournal.cdu.edu.ua/article/view/132 (Accessed: 16 May 2026).