@article{oai:tsukuba.repo.nii.ac.jp:00017570, author = {Sakai, Katsuro and Yaguchi, Masato}, issue = {1}, journal = {Tsukuba Journal of Mathematics}, month = {Jun}, pages = {143--159}, title = {Characterizing Manifolds Modeled on Certain Dense Subspaces of Non-Separable Hilbert Spaces}, volume = {27}, year = {2003} }