@article{oai:tsukuba.repo.nii.ac.jp:00015682,
 author = {Ochiai, Shoji},
 issue = {1},
 journal = {Tsukuba Journal of Mathematics},
 month = {Jun},
 pages = {21--37},
 title = {On the structure of the matrix corresponding to a finite topology},
 volume = {18},
 year = {1994}
}