著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) H. T. Yi and Y. J. Choi and S. Lee and S.-W. Cheong,Multiferroicity in the square-lattice antiferromagnet of Ba2CoGe2O7,Applied Physics Letters,0003-6951,AIP Publishing,2008-05-26,92,21,212904,https://cir.nii.ac.jp/crid/1361981471397319296,https://doi.org/10.1063/1.2937110