@article{oai:tsukuba.repo.nii.ac.jp:00017211, author = {Perez, Juan de Dios}, issue = {1}, journal = {Tsukuba Journal of Mathematics}, month = {Jun}, pages = {207--212}, title = {A characterization of almost-Einstein real hypersurfaces of quaternionic projective space}, volume = {21}, year = {1997} }