1. Aigner, M.: Whitney numbers. Combinatorial geometries. Encyclopedia Math. Appl., 29, 139–160. Cambridge Univ. Press, Cambridge (1987)
2. Broder, A.Z.: The
$$r$$
r
-Stirling numbers. Discrete Math. 49, 241–259 (1984)
3. Carlitz, L.: Weighted Stirling numbers of the first and second kind II. Fibonacci Quart. 18(3), 242–257 (1980)
4. Carlitz, L.: Weighted Stirling numbers of the first and second kind I. Fibonacci Quart. 18(2), 147–162 (1980)
5. Carlitz, L.: Some numbers related to the Stirling numbers of the first and second kind. Univ. Beograd. Publ. Elektrotehn. Fak. Ser. Mat. Fiz. 544–576, 49–55 (1976)