@article{SM_1991_68_2_a3, author = {A. V. Pajitnov}, title = {On the sharpness of {Novikov} type inequalities for manifolds with free {Abelian} fundamental group}, journal = {Sbornik. Mathematics}, pages = {351--389}, publisher = {mathdoc}, volume = {68}, number = {2}, year = {1991}, language = {en}, url = {http://geodesic.mathdoc.fr/item/SM_1991_68_2_a3/} }