Two Kinds of New Integrable Couplings of the Negative-Order Korteweg-de Vries Equation

Atangana, A., & Secer, A. (2013). The Time-Fractional Coupled-Korteweg-de-Vries Equations. Abstract and Applied Analysis, 2013(), 170-177-1319. https://doi.org/10.1155/2013/947986
Braun, M., & Randrüüt, M. (2010). On Periodic Waves Governed by the Extended Korteweg-de Vries Equation. Proceedings of the Estonian Academy of Sciences, 59(2), 133-138. https://www.airitilibrary.com/Article/Detail?DocID=17367530-201006-201010290094-201010290094-133-138
Schlereth, E. P., & Rodin, E. Y. (1984). ON THE KORTEWEG-DE VRIES EQUATION: AN ASSOCIATED EQUATION. International Journal of Mathematics and Mathematical Sciences, 1984(), 263-277. https://doi.org/10.1155/S0161171284000272
Shi, Y., XU, B., & Guo, Y. (2014). A Compact-Type CIP Method for General Korteweg-de Vries Equation. Abstract and Applied Analysis, 2014(), 668-676-1065. https://doi.org/10.1155/2014/640194
David, V. D., Nazari, M., Barati, V., Salah, F., & Aziz, Z. A. (2013). Approximate Analytical Solution for the Forced Korteweg-de Vries Equation. Journal of Applied Mathematics, 2013(), 21-29-702. https://doi.org/10.1155/2013/795818