Drobotskaya, I. S. “Analysis of Complete Integrability of a System Inverse to the Nonlinear Benney-Kaup System”. Ukrains’kyi Matematychnyi Zhurnal 45, no. 3 (March 25, 1993): 353–360. Accessed February 17, 2026. https://umj.imath.kiev.ua/index.php/umj/article/view/5816.