POKUTNYI, O. O. BOUNDARY VALUE PROBLEMS FOR THE LYAPUNOV EQUATION. Journal of Numerical and Applied Mathematics, [S. l.], n. 1, p. 39–64, 2023. DOI: 10.17721/2706-9699.2023.1.04. Disponível em: https://jnam.knu.ua/index.php/jnam/article/view/169. Acesso em: 6 oct. 2026.