1. Abramowitz, M, Stegun, IA: Handbook of Mathematical Functions. Dover, New York (1970)
2. Bayad, A, Hamahata, Y: Multiple polylogarithms and multi-poly-Bernoulli polynomials. Funct. Approx. Comment. Math. 46, 45-61 (2012), part 1
3. Dolgy, DV, Kim, DS, Kim, T, Mansour, T: Degenerate poly-Bernoulli polynomials of the second kind. J. Comput. Anal. Appl. 21(5), 954-966 (2016)
4. Cayley, A: On the analytical forms called trees, second part. Philos. Mag. Ser. IV 18(121), 374-378 (1859)
5. Comtet, L: Advanced Combinatorics, the Art of Finite and Infinite Expansions p. 228. Reidel, Dordrecht (1974)