@article{PismaZhETF.9.180,
    title = {Differential Resistance of Superconductors of the Second Kind},
    author = {Fogel', I. Ya. and Volotskaya, V. G and Korovin, L. N. and Dmitrienko, I. M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {9},
    issue = {3},
    pages = {180},
    year = {1969},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25302.shtml},
}