[AGM94] S. Abramsky, D. M. Gabbay, T. S. E. Maibaum, editors.
Handbook of logic in computer science. Vol. 3: Semantic structures.
Oxford: Clarendon Press, 1994.
ISBN 0-19-853762-X.
Zbl:0829.68111. [1]
[GKP89] Ronald L. Graham, Donald E. Knuth, Oren Patashnik.
Concrete Mathematics: A Foundation for Computer Science.
Addison-Wesley, Reading, 1989. [1][2][3][4][5][6]
[OEISFI25] OEIS Foundation Inc.
The On-Line Encyclopedia of Integer Sequences.
The On-Line Encyclopedia of Integer Sequences, 2025. [1][2][3][4][5]