@article{JAC_2008__28_1_a5,
     author = {Aguiar, Marcelo and Orellana, Rosa C.},
     title = {The {Hopf} algebra of uniform block permutations.},
     journal = {Journal of Algebraic Combinatorics},
     pages = {115--138},
     publisher = {mathdoc},
     volume = {28},
     number = {1},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_2008__28_1_a5/}
}