@article{PismaZhETF.39.280,
    title = {Possible ways to solve the triplet-doublet problem},
    author = {Krasnikov, N. V.},
    journal = {Письма в ЖЭТФ},
    volume = {39},
    issue = {6},
    pages = {280},
    year = {1984},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_19483.shtml},
}