http://dewey.info/scheme/edition/e23/ en
514 Topology
514.2 Algebraic topology
514.22 Combinatorial topology 514.23 Homology and cohomology theories 514.24 Homotopy theory
http://dewey.info/scheme/edition/e22/ de
514 Topologie
514.2 Algebraische Topologie
514.22 Kombinatorische Topologie 514.23 Homologie- und Kohomologietheorien 514.24 Homotopietheorie
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.