@article{PismaZhETF.52.984,
    title = {Measurement of neutron lifetime with a gravitational trap for ultracold neutrons},
    author = {Alfimenkov, V. P. and Varlamov, V. E. and Vasil'ev, A. V. and Gudkov, V. P. and Lushchikov, V. I. and Nesvizhevskii, V. V. and Serebrov, A. P. and Strelkov, A. V. and Sumbaev, S. O. and Tal'daev, R. R. and Kharitonov, A. G. and Shvetsov, V. N.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {52},
    issue = {7},
    pages = {984},
    year = {1990},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17515.shtml},
}