Yamada, Hironao, and Takayoshi Muto. 2003. “DEVELOPMENT OF A HYDRAULIC TELE-OPERATED CONSTRUCTION ROBOT USING VIRTUAL REALITY (NEW MASTER-SLAVE CONTROL METHOD AND AN EVALUATION OF A VISUAL FEEDBACK SYSTEM)”. International Journal of Fluid Power 4 (2):35-42. https://journals.riverpublishers.com/index.php/IJFP/article/view/607.