%0 Journal Article
%A N. Ya. Kruglyak
%T Smooth analogues of the Calder\'on--Zygmund decomposition, quantitative covering theorems and the $K$-functional for the couple $(L_q,W_p^k)$
%J Algebra i analiz
%D 1996
%P 110-160
%V 8
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AA_1996_8_4_a4/
%G ru
%F AA_1996_8_4_a4