@article{10_2140_agt_2003_3_1257,
     author = {Chapoton, Fr\'ed\'eric},
     title = {On a {Hopf} operad containing the {Poisson} operad},
     journal = {Algebraic and Geometric Topology},
     pages = {1257--1273},
     year = {2003},
     volume = {3},
     number = {2},
     doi = {10.2140/agt.2003.3.1257},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2003.3.1257/}
}