[1]
Eu, S.-P., Fu, T.-S., Liang, Y.-C. and Wong, T.-L. 2017. On $xD$-Generalizations of Stirling Numbers and Lah Numbers via Graphs and Rooks. The Electronic Journal of Combinatorics. 24, 2 (Apr. 2017), P2.9. DOI:https://doi.org/10.37236/6699.