SHARAPOV, M. M. To the question of trinomial functionals. Bulletin of Taras Shevchenko National University of Kyiv. Physics and Mathematics, [S. l.], n. 4, p. 80–85, 2023. DOI: 10.17721/1812-5409.2022/4.10. Disponível em: https://bphm.knu.ua/bphm/article/view/364. Acesso em: 16 oct. 2026.