@article{PismaZhETF.53.59,
    title = {Large gauge transformations and special orbits of the Virasoro group},
    author = {Gorskii, A. and Roy, B. and Selivanov, K.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {53},
    issue = {1},
    pages = {59},
    year = {1991},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17355.shtml},
}