> Начало >> NEWS >> 12,798 records were submitted by the National Library in relation to the project of retroconversion of holdings. The records are linked to the collection of Bulgarian PhD dissertations and thesises from the period between 1970-1995.

12,798 records were submitted by the National Library in relation to the project of retroconversion of holdings. The records are linked to the collection of Bulgarian PhD dissertations and thesises from the period between 1970-1995.