@article{SLC_2005-2007_54A_a12,
     author = {G\'erard H. E. Duchamp and Jean-Gabriel Luque and Karol A. Penson and Christophe Tollu},
     title = {Free {Quasi-Symmetric} {Functions,} {Product} {Actions} and {Quantum} {Field} {Theory} of {Partitions}},
     journal = {S\'eminaire lotharingien de combinatoire},
     publisher = {mathdoc},
     volume = {54A},
     year = {2005-2007},
     url = {http://geodesic.mathdoc.fr/item/SLC_2005-2007_54A_a12/}
}