@article{PismaZhETF.46.129,
    title = {Higher-order integrals of motion in two-dimensional models of the field theory with a broken conformal symmetry},
    author = {Zamolodchikov, A. B.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {46},
    issue = {4},
    pages = {129},
    year = {1987},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18528.shtml},
}