%0 Journal Article %A V. V. Tkachuk %T Duality with respect to the functor $C_p$ and cardinal invariants of the type of the Souslin number %J Matematičeskie zametki %D 1985 %P 441-451 %V 37 %N 3 %U http://geodesic.mathdoc.fr/item/MZM_1985_37_3_a16/ %G ru %F MZM_1985_37_3_a16