SEMENCHUK, A.; ZATORSKY, R. The Fourth Order Mixed Periodic Recurrence Fractions. Journal of Vasyl Stefanyk Precarpathian National University, [S. l.], v. 2, n. 4, p. 93–104, 2015. DOI: 10.15330/jpnu.2.4.93-104. Disponível em: https://scijournals.pnu.edu.ua/index.php/jpnu/article/view/2643. Acesso em: 3 jul. 2024.