@article{PismaZhETF.28.692,
    title = {Interference between overtone states of an impurity and the host lattice in an $NH_4CI$},
    author = {Belousov, N. V. and Pogarev, D. E.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {28},
    issue = {11},
    pages = {692},
    year = {1978},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_24261.shtml},
}