@article{PismaZhETF.48.300,
    title = {Calculation of a scalar determinant in the theory of open strings},
    author = {Losev, A. S.},
    journal = {Письма в ЖЭТФ},
    volume = {48},
    issue = {6},
    pages = {300},
    year = {1988},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_16720.shtml},
}