%0 Journal Article %A V. L. Sedov %T Jump on Fermi surface of the distribution function of electrons in momentum space as determined by means of two-quantum annihilation of positrons %J Doklady Akademii Nauk %D 1966 %P 1058-1059 %V 169 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1966_169_5_a19/ %G ru %F DAN_1966_169_5_a19