@article{oai:tsukuba.repo.nii.ac.jp:00015684,
 author = {K.Graves, Larry},
 issue = {2},
 journal = {Tsukuba Journal of Mathematics},
 month = {Dec},
 pages = {17--29},
 title = {On codimension one isometric immersions between indefinite space forms},
 volume = {3},
 year = {1979}
}