%0 Journal Article %A Ya. V. Slavolyubova %T Associated contact metric structures on the $7$-dimensional unit sphere~$S^7$ %J Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika %D 2016 %P 44-57 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/VTGU_2016_4_a4/ %G ru %F VTGU_2016_4_a4