%0 Journal Article %A V. G. Turaev %T Cohomology rings, linking forms and invariants of spin structures in three-dimensional manifolds %J Sbornik. Mathematics %D 1984 %P 65-79 %V 48 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1984_48_1_a3/ %G en %F SM_1984_48_1_a3