@article{PismaZhETF.12.538,
    title = {Conformal Symmetry of Critical Fluctuations},
    author = {Polyakov, A. M.},
    journal = {Письма в ЖЭТФ},
    volume = {12},
    issue = {12},
    pages = {538},
    year = {1970},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26381.shtml},
}