Review on neutrino mass by Zel'dovich and Khlopov

Here is the review on neutrino mass written in 1981 by Zel'dovich and Khlopov.
Official Forum of Virual Institute of Astroparticle physics, combining educational and professional levels of discussion
http://viavca.in2p3.fr:80/2010c_o_s_m_o_v_i_a__forum_sd24fsdf4zerfzef4ze5f4dsq34sdteerui45788789745rt7yr68t4y54865h45g4hfg56h45df4h86d48h48t7uertujirjtiorjhuiofgrdsqgxcvfghfg5h40yhuyir/