1. Clash: climbing vertical loose cloth;Birkmeyer,2011
2. Geckobot: a gecko inspired climbing robot using elastomer adhesives;Unver,2006
3. Gel-type sticky mobile inspector to traverse on the rugged wall and ceiling;Tsukagoshi,2009
4. Roma: a multifunctional autonomous self-supported climbing robot for inspection application;Balaguer,1998
5. A climbing autonomous robot for inspection applications in 3d complex environments;Balaguer;Robotica,2000