ZHDANOV, R. Z. Integrability of Riccati equations and stationary Korteweg-de vries equations. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 51, n. 6, p. 856–860, 1999. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4674. Acesso em: 27 apr. 2025.