@article{oai:tsukuba.repo.nii.ac.jp:00029684,
 author = {Tripathi, Mukut Mani and Sasahara, Tooru and Kim, Jeong-Sik},
 issue = {2},
 journal = {Tsukuba Journal of Mathematics},
 month = {Dec},
 pages = {495--510},
 title = {On invariant submanifolds of contact metric manifolds},
 volume = {29},
 year = {2005}
}