%0 Journal Article %A M. R. Bunyatov %T Basic concepts of the homotopy theory of continuous homomorphisms of closure algebras %J Doklady Akademii Nauk %D 1977 %P 1296-1299 %V 236 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1977_236_6_a2/ %G ru %F DAN_1977_236_6_a2