%0 Journal Article %A Nazhib Mukalled %T Generalized homotopy and the Aleksandrov–Čech homology %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 1990 %P 64-66 %N 2 %U http://geodesic.mathdoc.fr/item/VMUMM_1990_2_a14/ %G ru %F VMUMM_1990_2_a14