1. Proportional-Derivative Observer-Based Backstepping Control for an Underwater Manipulator. (29th November 2011) Authors: Santhakumar, M. Other Names: Yan Xing-Gang Academic Editor. Journal: Mathematical problems in engineering Issue: Volume 2011(2011) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗