@article{oai:shizuoka.repo.nii.ac.jp:00000795, author = {Ishidate, Takeo and Sasaki, S.}, issue = {1}, journal = {Physical Review Letters}, month = {Jan}, note = {application/pdf}, pages = {67--70}, title = {Elastic Anomaly and Phase-Transition of BaTiO₃}, volume = {62}, year = {1989} }