\begin{thebibliography}{1}

\bibitem{Chap}
F.~{\textsc{Chapoton}}.
\newblock Construction de certaines op\'erades et big\`ebres associ\'ees aux
  polytopes de {S}tasheff et hypercubes.
\newblock {\em Trans. Amer. Math. Soc.}, 354(1):63--74, 2002.

\bibitem{Flajolet}
P.~{\textsc{Flajolet}} and M.~{\textsc{Noy}}.
\newblock Analytic combinatorics of non-crossing configurations.
\newblock {\em Discrete Math.}, 204:203--229, 1999.

\bibitem{GK}
V.~{\textsc{Ginzburg}} and M.~{\textsc{Kapranov}}.
\newblock Koszul duality for operads.
\newblock {\em Duke Math. J.}, 76(1):203--272, 1994.

\bibitem{Lertribax}
Ph. {\textsc{Leroux}}.
\newblock Ennea-algebras.
\newblock {\em eprint, arXiv:math.QA/0309213, (version 2), to appear in J.
  Algebra}.

\bibitem{Lodayren}
J.-L. {\textsc{Loday}}.
\newblock La renaissance des op\'erades.
\newblock {\em Ast\'erisque}, 237:Exp. No. 792, 3, 47--74, 1996.

\bibitem{Loday}
J.-L. {\textsc{Loday}}.
\newblock Dialgebras.
\newblock {\em in Dialgebras and related operads, Lecture Notes in Math.
  Springer.}, 1763:7--66, 2001.

\bibitem{Lodayscd}
J.-L. {\textsc{Loday}}.
\newblock Scindement d'associativit\'e et alg\`ebres de {H}opf.
\newblock {\em Actes des journ\'ees math\'ematiques \`a la m\'emoire de Jean
  Leray, Nantes (2002), S\'eminaire et Congr\`es (SMF)}, 9:155--172, 2004.

\bibitem{LodayRonco}
J.-L. {\textsc{Loday}} and M.~{\textsc{Ronco}}.
\newblock Trialgebras and families of polytopes.
\newblock {\em In `Homotopy Theory: Relations with Algebraic Geometry, Group
  Cohomology, and Algebraic K-theory' Contemporary Mathematics}, 346, 2004.

\end{thebibliography}