ZAITSEV, G. F. CONTRIBUTION OF ACADEMICIAN OF THE AS UkrSSR A. I. KUKHTENKO AND HIS SCHOOLS INTO THE THEORY OF INVARIANCE. Problems of Informatization and Management, [S. l.], v. 2, n. 11, p. 29–32, 2021. Disponível em: http://jrnl.kai.edu.ua/index.php/PIU/article/view/15913. Acesso em: 13 apr. 2026.