http://dewey.info/scheme/edition/e23/ en
511 General principles of mathematics
511.6 Combinatorics (Combinatorial analysis)
511.62 Enumeration 511.64 Permutations and combinations 511.65 Choice 511.66 Extremal combinatorics
http://dewey.info/scheme/edition/e22/ de
511 Allgemeine mathematische Prinzipien
511.6 Kombinatorik (Kombinatorische Analysis)
511.62 Abzählen 511.64 Permutationen 511.65 Auswahl 511.66 Extremale Kombinatorik
Dewey Decimal Classification
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 Unported License by OCLC Online Computer Library Center, Inc. Permissions beyond the scope of this license may be available at here. All copyright rights in the Dewey Decimal Classification system are owned by OCLC. Dewey, Dewey Decimal Classification, DDC, OCLC and WebDewey are registered trademarks of OCLC.