@article{PismaZhETF.43.161,
    title = {Theta-function representation of the partition function of a Polyakov string},
    author = {Manin, Yu. I.},
    journal = {Письма в ЖЭТФ},
    volume = {43},
    issue = {4},
    pages = {161},
    year = {1986},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_21271.shtml},
}