Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Hara Kazuhiro and Sawada Akikatsu and Ishibashi Yoshihiro,Pressure Dependence of Raman Spectra in Low Frequency Region of Ferroelastic NdNbO4,Journal of the Physical Society of Japan,00319015,THE PHYSICAL SOCIETY OF JAPAN,1987,56,6,2187-2191,https://cir.nii.ac.jp/crid/1390001204187765504,https://doi.org/10.1143/jpsj.56.2187