@article{PismaZhETF.23.231,
    title = {Invariant effects in the reaction $\pi C^{12}\to$ mp + X, m $\geq$ 2, at 4 and 40 GeV/c},
    author = {Azimov, S. A. and Igamberdyev, K. R. and Lutfullaev, S. L. and Usmanov, T. M. and Yuldashev, A. A. and Yuldashev, B. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {23},
    issue = {4},
    pages = {231},
    year = {1976},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_27469.shtml},
}