Помогите пожалуйста со статьей
Title:
The Korteweg-de Vries equation and related evolution equations
Publication:
In: Nonlinear wave motion. (A75-14987 04-70) Providence, R.I., American Mathematical Society, 1974, p. 61-83.
https://ui.adsabs.harvard.edu/abs/1974a ... K/abstract