Library of Congress >> MARC >> Authority >> 667-68X  >> 677

677 - Definition (R)


MARC 21 Authority - full
November 2016

First Indicator Second Indicator
Undefined
# - Undefined

Undefined
# - Undefined


Subfield Codes
  • $a - Definition (R)
  • $u - Uniform Resource Identifier (R)
  • $v - Source of definition (NR)
  • $5 - Institution to which field applies (R)

FIELD DEFINITION AND SCOPE

A formal definition of the entity described in the record.


GUIDELINES FOR APPLYING CONTENT DESIGNATORS

INDICATORS

SUBFIELD CODES

$a - Definition

A formal definition of the entity.

150 ##$aKewa,
677 ##$aVolk in Papua-Neuguinea

$u - Uniform Resource Identifier

Uniform Resource Identifier (URI), for example a URL or URN, which provides electronic access data in a standard syntax. This data can be used for automated access to an electronic item using one of the Internet protocols.

$v - Source of definition

The source of the definition, i.e. a reference to the source from which the definition is quoted.

150 ##$aAutomat$gAutomatentheorie
677 ##$aAbstrakte Modelle von Maschinen. Sie dienen in der Theoretischen Informatik als Konstrukt, um gewisse Eigenschaften von Problemen und Algorithmen zu analysieren und zu beweisen$vWikipedia
677 ##$aAn automaton is a general term for any formal model of computation$vPlanetMath

$5 - Institution to which field applies

See description of this subfield in Appendix A: Control Subfields.


CONTENT DESIGNATOR HISTORY

Field 677 - Definition [NEW, 2016]

Library of Congress >> MARC >> Authority >> 667-68X  >> 677
(11/17/2016)
Contact Us