@article{PismaZhETF.47.545,
    title = {Renormalization theorems for heterotic strings},
    author = {Kallosh, R. E. and Morozov, A. Yu.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {47},
    issue = {11},
    pages = {545},
    year = {1988},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_16586.shtml},
}