@article{PismaZhETF.39.38,
    title = {Annihilation of nonrelativistic protons},
    author = {Dal'karov, O. D. and Tyapaev, R. T. and Shapiro, I. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {39},
    issue = {1},
    pages = {38},
    year = {1984},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_19112.shtml},
}