@article{10_4064_sm192_3_1,
     author = {Ron Kerman and Lubo\v{s} Pick},
     title = {Optimal {Sobolev} imbedding spaces},
     journal = {Studia Mathematica},
     pages = {195--217},
     year = {2009},
     volume = {192},
     number = {3},
     doi = {10.4064/sm192-3-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm192-3-1/}
}