Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Iiyama Noriko and Natori Kenji and Ohnishi Kouhei,Bilateral Teleoperation under Time-Varying Communication Time Delay Considering Contact with Environment,IEEJ Transactions on Industry Applications,09136339,The Institute of Electrical Engineers of Japan,2007,127,10,1050-1056,https://cir.nii.ac.jp/crid/1390001204659520640,https://doi.org/10.1541/ieejias.127.1050