Islam MS. Poincare Duality of Morse-Novikov Cohomology on a Riemannian Manifold. GANIT: J. Bangladesh Math. Soc. [Internet]. 2022 Feb. 2 [cited 2024 Dec. 22];41(2):34-40. Available from: https://banglajol.info/index.php/GANIT/article/view/57575