@article{PismaZhETF.51.550,
    title = {Observation of the excess of events in the experiment on the search for a two-neutrino double beta decay of $^{100}Mo$},
    author = {Vasil'ev, S. I. and Klimenko, A. A. and Osetrov, S. B. and Pomanskii, A. A. and Smol'nikov, A. A.},
    journal = {Письма в ЖЭТФ},
    volume = {51},
    issue = {11},
    pages = {550},
    year = {1990},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_17331.shtml},
}