TY - JOUR AU - V. G. Turaev TI - Cohomology rings, linking forms and invariants of spin structures in three-dimensional manifolds JO - Sbornik. Mathematics PY - 1984 SP - 65 EP - 79 VL - 48 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1984_48_1_a3/ LA - en ID - SM_1984_48_1_a3 ER -