For citations:

Samarin A.Yu. Doublet Collection of the Moscow Public and Rumyantsev Museums as a Source of Formation of the Library of D.V. Ulyaninsky. Bibliotekovedenie [Russian Journal of Library Science]. 2024;73(4):345-354. (In Russ.) https://doi.org/10.25281/0869-608X-2024-73-4-345-354