@article{10_37236_1101,
     author = {N. Bergeron and C. Hohlweg and M. Rosas and M. Zabrocki},
     title = {Grothendieck bialgebras, partition lattices, and symmetric functions in noncommutative variables},
     journal = {The electronic journal of combinatorics},
     year = {2006},
     volume = {13},
     doi = {10.37236/1101},
     zbl = {1098.05079},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/1101/}
}