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\begin{thebibliography}{1}

\bibitem{merlet91-1}
Merlet J-P.
\newblock An algorithm for the forward kinematics of general parallel
  manipulators.
\newblock In {\em ICAR}, pages 1131--1135, Pise,
19-22/6/1991.

\bibitem{merlet90-4}
Merlet J-P.
\newblock An algorithm for the forward kinematics of general 6 d.o.f. parallel
  manipulators.
\newblock Research Report 1331, INRIA, Novembre 1990
\newblock \htmladdnormallink{GET IT!}{ftp://zenon.inria.fr:/pub/rapports/}.

\end{thebibliography}