Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
YAMAMOTO Toshio,On the Critical Speeds of Synchronous Backward Precession,Transactions of the Japan Society of Mechanical Engineers,00290270,The Japan Society of Mechanical Engineers,1956,22,115,167-171,https://cir.nii.ac.jp/crid/1390282680133738368,https://doi.org/10.1299/kikai1938.22.167