@article{PismaZhETF.83.165,
    title = {The masses of active neutrinos in the $\nu$MSM from X-ray astronomy},
    author = {Boyarsky, A. and Neronov, A. and Ruchayskiy, O. and Shaposhnikov, M.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {83},
    issue = {4},
    pages = {165},
    year = {2006},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_16065.shtml},
}