@article{10_37236_1197,
     author = {Herbert S. Wilf},
     title = {The problem of the kings},
     journal = {The electronic journal of combinatorics},
     year = {1995},
     volume = {2},
     doi = {10.37236/1197},
     zbl = {0814.05007},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/1197/}
}