@article{PismaZhETF.12.347,
    title = {Concerning One Experimental Possibility in Neutrino Astronomy},
    author = {Zatsepin, G. and Pontecorvo, B.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {12},
    issue = {7},
    pages = {347},
    year = {1970},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26322.shtml},
}