http://dewey.info/scheme/edition/e23/ en
003 Systems
003.5 Theory of communication and control
003.52 Perception theory 003.54 Information theory 003.56 Decision theory
http://dewey.info/scheme/edition/e22/ de
003 Systeme
003.5 Theorie der Regelung und Nachrichten├╝bermittlung
003.52 Wahrnehmungstheorie 003.54 Informationstheorie 003.56 Entscheidungstheorie
Dewey Decimal Classification
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