Dynamics of solitons in a nonintegrable version of the modified Korteweg-de Vries equationKurkina, Oxana; Kurkin, Andrey; Ruvinskaja, E. A.; Pelinovsky, Efim; Soomere, TarmoJETP letters2012 / p. 91-95 : illhttps://link.springer.com/article/10.1134/S0021364012020051