PRYKARPATSKY, Ya. A.; SAMOILENKO, A. M.; SAMOILENKO, V. G. Structure of Binary Transformations of Darboux Type and Their Application to Soliton Theory. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 55, n. 12, p. 1704–1719, 2003. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4032. Acesso em: 5 dec. 2025.