%0 Journal Article %A N. S. Dombrovskaya %T Determination of the steps of stable diagonals in a mutual septenary system of the 16 ะก type %J Doklady Akademii Nauk %D 1962 %P 615-617 %V 147 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1962_147_3_a28/ %G ru %F DAN_1962_147_3_a28