@article{AIHPD_2018__5_1_61_0,
     author = {Bousbaa, Imad Eddine and Chouria, Ali and Luque, Jean-Gabriel},
     title = {A combinatorial {Hopf} algebra for the boson normal ordering problem},
     journal = {Annales de l{\textquoteright}Institut Henri Poincar\'e D},
     pages = {61--102},
     volume = {5},
     number = {1},
     year = {2018},
     doi = {10.4171/aihpd/48},
     mrnumber = {3760883},
     zbl = {1390.05238},
     language = {en},
     url = {http://www.numdam.org/articles/10.4171/aihpd/48/}
}