@article{PismaZhETF.21.653,
    title = {Frequency shift of hyperfine transition $\Delta m_F$ = 0 of the ground state of an H atom chemically interacting with  molecules in the gas phase},
    author = {Gordon, E. B. and Ivanov, B. I. and Perminov, A. P. and Balalaev, V. E. and Datchenko, F. F. and Ponomarev, A. N.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {21},
    issue = {11},
    pages = {653},
    year = {1975},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22514.shtml},
}