@article{PismaZhETF.8.333,
    title = {Probability of Determining the Upper Limit of the Neutrino Mass from  the Time of Flight},
    author = {Zatsepin, G. I.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {8},
    issue = {6},
    pages = {333},
    year = {1968},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_26008.shtml},
}