Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Anton S. Shiriaev, Leonid B. Freidovich, Mark W. Spong. Controlled Invariants and Trajectory Planning for Underactuated Mechanical Systems. IEEE Trans. Automat. Contr., 59(9):2555-2561, 2014. [doi]
Abstract is missing.