A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2022; you can also visit the original URL. The file type is application/pdf.
application/pdf
坂野 誠一. "サウンド用フイルムの周波數的記録性能の測定." The Journal of The Society of Scientific Photography of Japan 10.2 (1945) 41-49