@article{SLC_1992_29_a4,
     author = {D. Blessenohl and H. Laue},
     title = {Algebraic {Combinatorics} {Related} to the {Free} {Lie} {Algebra}},
     journal = {S\'eminaire lotharingien de combinatoire},
     publisher = {mathdoc},
     volume = {29},
     year = {1992},
     url = {http://geodesic.mathdoc.fr/item/SLC_1992_29_a4/}
}