@article{oai:tsukuba.repo.nii.ac.jp:00028104,
 author = {Feng, Xu and Aoki, Sinya and 青木, 愼也 and Fukaya, Hidenori and Hashimoto, Shoji and Kaneko, Takashi and Noaki, Jun-ichi and Shintani, Eigo and JLQCD, Collaboration},
 issue = {18},
 journal = {Physical review letters},
 month = {Nov},
 title = {Two-Photon Decay of the Neutral Pion in Lattice QCD},
 volume = {109},
 year = {2012}
}