Bondar’O. P. (1996) “Generalized (CO)Homology length of a Manifold and functions with Singular Submanifolds”, Ukrains’kyi Matematychnyi Zhurnal, 48(6), pp. 843-846. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/5284 (Accessed: 24November2024).