@article{PismaZhETF.19.117,
    title = {Magnetic breakdown in niobium in strong magnetic fields},
    author = {Alekseevskii, N. E. and Bertel, K. -H. and Nizhankovskii, V. I.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {19},
    issue = {2},
    pages = {117},
    year = {1974},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26959.shtml},
}