@article{PismaZhETF.51.468,
    title = {Superconductivity of nonstoichiometric niobium carbide},
    author = {Karimov, Yu. S. and Utkina, T. G.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {51},
    issue = {9},
    pages = {468},
    year = {1990},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17304.shtml},
}