@article{PismaZhETF.49.489,
    title = {Soliton diffusion coefficient},
    author = {Ivanov, B. A. and Kolezhuk, A. K.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {49},
    issue = {9},
    pages = {489},
    year = {1989},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_16962.shtml},
}