@CONFERENCE{TCL93cdc,
  author = {Tsiotras, P. and Corless, M. and Longuski, J. M.},
  title = {Invariant Manifold Techniques for Attitude Control of a Symmetric Spacecraft},
  booktitle = {Proceedings of the 32nd Conference on Decision and Control},
  year = {Dec. 15-17, 1993},
  pages = {1470--1475},
  note = {San Antonio, TX}
}