@article{10_4064_cm_38_2_263_267,
     author = {Philip S. Crooke},
     title = {An isoperimetric bound for a {Sobolev} constant},
     journal = {Colloquium Mathematicum},
     pages = {263--267},
     publisher = {mathdoc},
     volume = {38},
     number = {2},
     year = {1977},
     doi = {10.4064/cm-38-2-263-267},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-38-2-263-267/}
}