@article{oai:tsukuba.repo.nii.ac.jp:00017309, author = {Iwamoto, Yutaka and Tomoyasu, Kazuo}, issue = {1}, journal = {Tsukuba Journal of Mathematics}, month = {Jun}, pages = {179--186}, title = {Higson compactifications obtained by expanding and contracting the half-open interval}, volume = {25}, year = {2001} }