@article{EJC_1996__3_1_118928,
     author = {Yen, Lily},
     title = {A symmetric functions approach to {Stockhausen's} problem.},
     journal = {The Electronic Journal of Combinatorics [electronic only]},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {1996},
     zbl = {0852.05007},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/EJC_1996__3_1_118928/}
}