Property talk:P8391

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BBK (library and bibliographic classification)
library and bibliographic classification is the national classification system of Russia, it codifies themes of books published in Russia and some countries of the former USSR

Applicable "stated in" value	Bibliothecal-Bibliographical classification (Q856579)
Data type	External identifier
Example	Bol'shoy psikhologicheskiy slovar' (Q96146145) → 88я2 The past through the prism of the present (Q96197030) → Т3(2Г)0-6я43 Т3(2Г)0-64(2)я43 Т3(2)0-64(2Г)я43 The Magic of Reality (Q3285467) → 72 Д63 LIBRARY-BIBLIOGRAPHIC CLASSIFICATION, XXI (Q96197388) → 78.364.111.1 Bible (Q1845) → 86.37-2
Source	http://roslavl.library67.ru/files/382/bbk.pdf
Related to country	Russia (Q159) (See 356 others)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other external identifier Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Database reports/Constraint violations/P8391 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 97 Main statement 89 91.8% of uses Qualifier 7 7.2% of uses Reference 1 1% of uses
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Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P8391#Entity types

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P8391#Scope, SPARQL