@article{PismaZhETF.67.276,
    title = {Vortex drag in quantum Hall effect},
    author = {Vitkalov, S. A.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {67},
    issue = {4},
    pages = {276},
    year = {1998},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_15181.shtml},
}