@article{oai:tsukuba.repo.nii.ac.jp:00017156,
 author = {Ishikawa, Yasushi},
 issue = {2},
 journal = {Tsukuba Journal of Mathematics},
 month = {Dec},
 pages = {399--411},
 title = {A small example of non-local operators having no transmission property},
 volume = {25},
 year = {2001}
}