@article{oai:ynu.repo.nii.ac.jp:00006785,
 author = {Nunokawa, Mamoru},
 issue = {1},
 journal = {Yokohama Mathematical Journal = 横濱市立大學紀要. D部門, 数学},
 month = {},
 note = {application/pdf},
 pages = {21--26},
 title = {ON ANOTHER PROOF OF UMEZAWA'S THEOREM},
 volume = {36},
 year = {1988}
}