Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) 椹木 義一 and 明石 一 and 岡田 剛 and 山田 栄,The Limit Cycle and its Initial Condition of Relay Servomechanism Operating on Sampled Data,Journal of the Society of Mechanical Engineers,00290270,The Japan Society of Mechanical Engineers,1960,63,496,733,https://cir.nii.ac.jp/crid/1390001205914655488,https://doi.org/10.1299/jsmemag.63.496_733_4