@article{10_4153_CJM_1966_107_1,
     author = {Clark, Colin},
     title = {The {Hilbert-Schmidt} {Property} for {Embedding} {Maps} between {Sobolev} {Spaces}},
     journal = {Canadian journal of mathematics},
     pages = {1079--1084},
     year = {1966},
     volume = {18},
     number = {1},
     doi = {10.4153/CJM-1966-107-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1966-107-1/}
}