@article{oai:tsukuba.repo.nii.ac.jp:00017048,
 author = {Wu, Yong-Shi and 初貝, 安弘 and HATSUGAI, Yasuhiro and Kohmoto, Mahito},
 issue = {5},
 journal = {Physical review letters},
 month = {Feb},
 pages = {659--662},
 title = {Gauge invariance of fractionally charged quasiparticles and hidden topological Zn symmetry},
 volume = {66},
 year = {1991},
 yomi = {ハツガイ, ヤスヒロ}
}