@article{PismaZhETF.60.553,
    title = {Universal theory of strings and 2D (super)gravity},
    author = {Semikhatov, A. M.},
    journal = {Письма в ЖЭТФ},
    volume = {60},
    issue = {8},
    pages = {553},
    year = {1994},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20394.shtml},
}