@article{PismaZhETF.52.842,
    title = {Hyperbolic strings, bosonized ghosts, and fermions},
    author = {Popov, A. D.},
    journal = {Письма в ЖЭТФ},
    volume = {52},
    issue = {4},
    pages = {842},
    year = {1990},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17475.shtml},
}