@article{oai:ynu.repo.nii.ac.jp:00006660,
 author = {Arora, S. C. and Kumar, Ramesh},
 issue = {1&2},
 journal = {Yokohama Mathematical Journal = 横濱市立大學紀要. D部門, 数学},
 month = {},
 note = {application/pdf},
 pages = {41--44},
 title = {M-HYPONORMAL OPERATORS},
 volume = {28},
 year = {1980}
}