BibSlavKon: 2 hits for Agoston-Nikolova, Elka

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 Agoston-Nikolova, Elka provides 2 hits
1	The World is Vast : (Bulgarian Exile Writers Between Two Cultures) Agoston-Nikolova, Elka - Dutch Contributions to the Twelfth International Congress of Slavists : Kraków, August 26 - September 3, 1998 : Literature (1999), 3-10
2	The Oral Singer’s Art : the Point of View of Male and Female Singers in the Vuk Karadžić Collection of Oral Epic Songs Agoston-Nikolova, Elka - Dutch Contributions to the Eleventh International Congress of Slavists : Bratislava, August 30 - September 9, 1993 : Literature (1994), 1-12

Bibliography of International Congresses of Slavists (BibSlavKon)

The World is Vast : (Bulgarian Exile Writers Between Two Cultures)

The Oral Singer’s Art : the Point of View of Male and Female Singers in the Vuk Karadžić Collection of Oral Epic Songs