%0 Journal Article
%A Dai, Feng
%A Prymak, Andriy
%T On directional Whitney inequality
%J Canadian journal of mathematics
%D 2022
%P 833-857
%V 74
%N 3
%U http://geodesic.mathdoc.fr/articles/10.4153/S0008414X21000110/
%R 10.4153/S0008414X21000110
%F 10_4153_S0008414X21000110