@article{PismaZhETF.30.78,
    title = {Potential-free formulation of the inverse scattering problem},
    author = {Muzafarov, V. M. and Troitskii, V. E.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {30},
    issue = {1},
    pages = {78},
    year = {1979},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20587.shtml},
}