@article{PismaZhETF.29.265,
    title = {Determination of signs of parameters of hyperfine and super-hyperfine interactions},
    author = {Zaripov, M. M. and Meiklyar, V. P. and Falin, M. L.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {29},
    issue = {5},
    pages = {265},
    year = {1979},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22071.shtml},
}