@article{oai:tsukuba.repo.nii.ac.jp:00041593,
 author = {MORTAD, Mohammed Hichem},
 issue = {1},
 journal = {Tsukuba Journal of Mathematics},
 month = {},
 pages = {129--136},
 title = {Similarities Involving Unbounded Normal Operators},
 volume = {34},
 year = {2010}
}