@article{oai:tsukuba.repo.nii.ac.jp:00016147,
 author = {Garcia-Ferreira, Salvador and Tamariz-Mascarua, Angel},
 issue = {1},
 journal = {Tsukuba Journal of Mathematics},
 month = {Jun},
 pages = {173--185},
 title = {Some generalizations of rapid ultrafilters in topology and Id-fan tightness},
 volume = {19},
 year = {1995}
}