Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) IMAE Joe and OGATA Hideki,A Feedback Design for Control Systems with Nondifferentiable Functions. Backstepping Approach.,TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C,0387-5024,The Japan Society of Mechanical Engineers,1999,65,632,1491-1497,https://cir.nii.ac.jp/crid/1390282681303951488,https://doi.org/10.1299/kikaic.65.1491