@article{BSMF_2013__141_1_107_0,
     author = {Novelli, Jean-Christophe and Patras, Fr\'ed\'eric and Thibon, Jean-Yves},
     title = {Natural endomorphisms of quasi-shuffle {Hopf} algebras},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {107--130},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {141},
     number = {1},
     year = {2013},
     doi = {10.24033/bsmf.2644},
     zbl = {1266.05175},
     language = {en},
     url = {http://archive.numdam.org/articles/10.24033/bsmf.2644/}
}