Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SHINNAKA Shinji and KAWAMATA Naoki and SUZUKI Takashi,An Approach to Making Reference Models with Arbitrary Relative Degree,Transactions of the Society of Instrument and Control Engineers,04534654,The Society of Instrument and Control Engineers,1985,21,9,993-995,https://cir.nii.ac.jp/crid/1390001204503142272,https://doi.org/10.9746/sicetr1965.21.993