Bibliography of International Congresses of Slavists (BibSlavKon)

The Bibliography of International Congresses of Slavists (1929-2018) was converted from thirteen printed volumes into a database in cooperation with the Slavonic Library in Prague (Slovanská knihovna Praha) and contains 8550 records. Since 2008 the Bibliography appear only in electronic form and will be updated in five-year interval according to the next Congresses of Slavists. The further information can be found here. The overview of the classification can be found: here.

Your search for Jašar-Nasteva, O. provides 2 hits
1	Razvoj na dijalektnata leksika vo uslovi na jazična interferencija Jašar-Nasteva, O. - Referati na makedonskite slavisti za IX Meģunaroden slavistički kongres vo Kiev (1983), 15-23
2	Stilističkata upotreba na turcizmite vo sovremeniot makedonski jazik Jašar-Nasteva, O. - Referati na makedonskite slavisti za VII Meģunaroden slavistički kongres vo Varšava (1973), 35-43

Bibliography of International Congresses of Slavists (BibSlavKon)

Razvoj na dijalektnata leksika vo uslovi na jazična interferencija

Stilističkata upotreba na turcizmite vo sovremeniot makedonski jazik