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, National Interdisciplinary Research E-Infrastructure for Bulgarian Language and Cultural Heritage Resources and Technologies

, CLARIN: European Research Infrastructure for Language Resources and Technology

, DARIAH: Digital Research Infrastructure for the Arts and Humanities

, The National Library Ivan Vazov in Plovdiv is the second largest library in Bulgaria. It serves as the second national legal depository of Bulgarian printed works. In addition, it has contributed significantly to the preservation and the digital accessibility of the national cultural and historical heritage, p.2020