id: 50073660 dt: j an: 50073660 au: Stamnes, øyvind Nistad; Aamo, Ole Morten; Kaasa, Glenn-Ole ti: A constructive speed observer design for general Euler-Lagrange systems so: Automatica 47, No. 10, 2233-2238 (2011). py: 2011 pu: la: EN cc: ut: ci: li: doi:10.1016/j.automatica.2011.08.006