@article{PismaZhETF.31.781,
    title = {Superheavy fermions and proton lifetime},
    author = {Smirnov, A. Yu.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {31},
    issue = {12},
    pages = {781},
    year = {1980},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20565.shtml},
}