Fushchich V. I., Tychinin V. A. and Serov N. I. (1992) “Formula for multiplication of solutions of the Cortevegs—de Fries equations”, Ukrains’kyi Matematychnyi Zhurnal, 44(5), pp. 716-719. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/7972 (Accessed: 24November2024).