@article{PismaZhETF.23.244,
    title = {Influence of collective modes on the order of the phase transition},
    author = {Volkov, B. A. and Kopaev, Yu. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {23},
    issue = {5},
    pages = {244},
    year = {1976},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27473.shtml},
}