@conference {48, title = {On the Non-Robustness of Memoryless Path-Lifting Schemes for Quaternion-Based Attitude Control}, booktitle = {Proc. 30th American Control Conference}, series = {NULL}, year = {2011}, pages = {1003{\textendash}1008}, keywords = {attitude control}, doi = {http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5991359}, author = {C. G. Mayhew and R. G. Sanfelice and A. R. Teel} }