DRĂGAN, Vasile; POPA, Ioan-Lucian. A spectral criterion for the existence of the stabilizing solution of a class of Riccati type differential equations with periodic coefficients. Studia Universitatis Babeș-Bolyai Mathematica, [S. l.], v. 66, n. 1, p. 159–177, 2021. DOI: 10.24193/subbmath.2021.1.14. Disponível em: https://studia.reviste.ubbcluj.ro/index.php/subbmathematica/article/view/1273. Acesso em: 5 feb. 2025.