(P1973)
English
RSL editions
catalogue number of the Russian State Library of Moscow (see also P1815 and P947)
Data type
External identifier
Statements
http://aleph.rsl.ru/F?func=direct-set&l_base=xall&doc_number=$1
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^https?:\/\/aleph\.rsl\.ru\/F\?func=direct-set&l_base=xall&doc_number=(\d{9})
1 reference
\d{9}
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Constraints
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