Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Ishibashi Yoshihiro,The 90°-Wall in the Tetragonal Phase of BaTiO3-Type Ferroelectrics,Journal of the Physical Society of Japan,00319015,THE PHYSICAL SOCIETY OF JAPAN,1993,62,3,1044-1047,https://cir.nii.ac.jp/crid/1390001204179086848,https://doi.org/10.1143/jpsj.62.1044