%0 Journal Article %A Ohtsuki, Tomotada %T Perturbative invariants of 3–manifolds with the first Betti number 1 %J Geometry & topology %D 2010 %P 1993-2045 %V 14 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.2140/gt.2010.14.1993/ %R 10.2140/gt.2010.14.1993 %F GT_2010_14_4_a3