%0 Journal Article %A I. V. Yevseyev %A V. N. Tsikunov %T Theory of the modified stimulated photon echo in ytterbium vapor in the presence of a longitudinal magnetic field %J Doklady Akademii Nauk %D 1986 %P 857-861 %V 288 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1986_288_4_a17/ %G ru %F DAN_1986_288_4_a17