@article{CML_2012__4_1_A4_0,
     author = {Manchon, Dominique},
     title = {On bialgebras and {Hopf} algebras of oriented graphs
},
     journal = {Confluentes Mathematici},
     publisher = {World Scientific Publishing Co Pte Ltd},
     volume = {4},
     number = {1},
     year = {2012},
     doi = {10.1142/S1793744212400038},
     language = {en},
     url = {http://www.numdam.org/articles/10.1142/S1793744212400038/}
}