@article{PismaZhETF.54.308,
    title = {Marginal deformations of conformal field theories with $Z_3$ symmetry},
    author = {Belov, A. A. and Lozovik, Yu. E.},
    journal = {Письма в ЖЭТФ},
    volume = {54},
    issue = {6},
    pages = {308},
    year = {1991},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18888.shtml},
}