%0 Journal Article %A B. A. Popovkin %A A. V. Novoselova %T An investigation of the lead selenite~-- lead oxide system %J Doklady Akademii Nauk %D 1961 %P 117-119 %V 139 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_139_1_a28/ %G ru %F DAN_1961_139_1_a28