@article{oai:tsukuba.repo.nii.ac.jp:00029809,
 author = {Kowalczyk, Dorota},
 issue = {2},
 journal = {Tsukuba Journal of Mathematics},
 month = {Dec},
 pages = {363--381},
 title = {On the Reissner-Nordstrom-de Sitter type spacetimes},
 volume = {30},
 year = {2006}
}