cryogenic temperaturesQuantitative evaluation of plutonium proliferation protection 6/22/2018 2018 - #02 Physics and technology of nuclear reactors Kulikov E.G. Kulikov G.G. Apse V.A. Shmelev A.N. Geraskin N.I.Calculational model and physical and technical factors that determine plutonium proliferation protection 3/23/2018 2018 - #01 Physics and technology of nuclear reactors Kulikov E.G. Kulikov G.G. Apse V.A. Shmelev A.N. Geraskin N.I.