\begin{thebibliography}{1}

\bibitem{merlet94-4}
Merlet J-P.
\newblock Trajectory verification in the workspace for parallel manipulators.
\newblock {\em The Int. J. of Robotics Research}, 13(4):326--333,
  Augus 1994.

\bibitem{merlet95}
Merlet J-P.
\newblock Designing a parallel robot for a specific workspace.
\newblock Research Report 2527, INRIA, April 1995.

\end{thebibliography}