@article{PismaZhETF.33.243,
    title = {Generation of particles with a lifetime of $10^{-14} - 10^{-13}$  sec in collisions of 70-GeV protons and 50-GeV $\pi^-$ -mesons with emulsion nuclei},
    author = {Tolstov, K. D. and Shabratova, G. S. and Bobodzhanov, I. and Sun Tsin-Yan, G. and Khushvaktova, A. A.},
    journal = {Письма в ЖЭТФ},
    volume = {33},
    issue = {4},
    pages = {243},
    year = {1981},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_22998.shtml},
}