@article{PismaZhETF.96.14,
    title = {A doublet of cosmic-ray events with primary energies $\boldsymbol{>10^{20}}$ eV},
    author = {Troitsky, S. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {96},
    issue = {1},
    pages = {14},
    year = {2012},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_29852.shtml},
}