%0 Journal Article %A I. A. Taimanov %T Generalised Kummer construction and the cohomology rings of $G_2$-manifolds %J Sbornik. Mathematics %D 2018 %P 1803-1811 %V 209 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_2018_209_12_a6/ %G en %F SM_2018_209_12_a6