%0 Journal Article %A V. D. Davydov %T The problem of polygonality and irregularities of the shape of some Lunar craters %J Doklady Akademii Nauk %D 1968 %P 797-799 %V 178 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1968_178_4_a11/ %G ru %F DAN_1968_178_4_a11