Kemelbekova, G., Yesmakhanova, K., Tapeeva, S., & Tungushbaeva, D. (2015). Darboux transformation and solution of the modified Korteweg–de Vries equation. Bulletin of the Karaganda University. Mathematics Series, 80(4), 98–102. Retrieved from https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/67