@article{oai:tsukuba.repo.nii.ac.jp:00017306,
 author = {Nagatomo, Yasuyuki},
 issue = {1},
 journal = {Tsukuba Journal of Mathematics},
 month = {Jun},
 pages = {39--47},
 title = {Singular sets of ideal instantons and Poincare duality},
 volume = {26},
 year = {2002}
}