A generalized recurrence for Bell numbers. Spivey, Michael Z. — 2008 Journal of Integer Sequences [electronic only]
The k -binomial transforms and the Hankel transform. Spivey, Michael Z.; Steil, Laura L. — 2006 Journal of Integer Sequences [electronic only]
Counting functions and finite differences. Guersenzvaig, Natalio H.; Spivey, Michael Z. — 2007 Integers