@article{PismaZhETF.46.14,
    title = {Nature of the narrow energy peak of positrons produced in heavy-ion collisions},
    author = {Demkov, Yu. N. and Ovchinnikov, S. Yu.},
    journal = {Письма в ЖЭТФ},
    volume = {46},
    issue = {1},
    pages = {14},
    year = {1987},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18490.shtml},
}