%0 Journal Article %A Tie, Jingzhi %T Imbedding C 1 into H 1 %J Canadian journal of mathematics %D 1995 %P 1317-1328 %V 47 %N 6 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1995-067-5/ %R 10.4153/CJM-1995-067-5 %F 10_4153_CJM_1995_067_5