BibSlavKon: 53 hits for C8627 on page 6

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 C8627 provides 53 hits
51	N. D. Andreev’s Proto-Boreal Theory and Its Implications in Understanding the Central-East and Southeast European Ethnogenesis : Slavic, Baltic and Thracian Paliga, Sorin - Romanoslavica (2002), 93–104
52	Osvoboditeľnaja bor’ba slavjanskich narodov Centraľnoj i Jugo-Vostočnoj Jevropy v gody Vtoroj mirovoj vojny i koncepcii obščestvennopolitičeskogo razvitija Gibianskij, L. Ja.; Muraško, G. P.; Parsadanova, V. S. - Istorija, kuľtura, etnografija i foľklor slavjanskich narodov (1973), 52-72
53	Multiple Language and Cultural Self-Identities of the German-Speaking Lutheran Minorities in „Russian Poland“ (Mazowsze and Suvalkija) in the Nineteenth and Twentieth Centuries Vakareliyska, Cynthia M. - American Contributions to the 13th International Congress of Slavists : Ljubljana, August 2003 (2003), 195–215

Bibliography of International Congresses of Slavists (BibSlavKon)

N. D. Andreev’s Proto-Boreal Theory and Its Implications in Understanding the Central-East and Southeast European Ethnogenesis : Slavic, Baltic and Thracian

Osvoboditeľnaja bor’ba slavjanskich narodov Centraľnoj i Jugo-Vostočnoj Jevropy v gody Vtoroj mirovoj vojny i koncepcii obščestvennopolitičeskogo razvitija

Multiple Language and Cultural Self-Identities of the German-Speaking Lutheran Minorities in „Russian Poland“ (Mazowsze and Suvalkija) in the Nineteenth and Twentieth Centuries