%0 Journal Article %A S. K. Vodopyanov %A A. I. Tyulenev %T Sobolev $W^1_p$-spaces onĀ $d$-thick closed subsets of $\mathbb R^n$ %J Sbornik. Mathematics %D 2020 %P 786-837 %V 211 %N 6 %U http://geodesic.mathdoc.fr/item/SM_2020_211_6_a1/ %G en %F SM_2020_211_6_a1