BibSlavKon: 11 hits for C4640 on page 1

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 C4640 provides 11 hits
1	A Phantom Sound-Change: CS -ǑM#> -Ǔ Orr, Robert - Canadian Slavonic Papers : an Inter-disciplinary Quarterly Devoted to the Soviet Union and Eastern Europe 30 (1988) 1, 41-61
2	Tradition and Change in the Thought of Ljuben Karavelov Shashko, Philip - American Contributions to the Tenth International Congress of Slavists : Sofia, September 1988 : Literature (1988), 351-370
3	Affective Sound-Change in Early Slavic Priestly, Tom M. S. - Canadian Contributions to the VIII International Congress of Slavists (Zagreb – Ljubljana 1978) : Tradition and Innovation in Slavic Literatures, Linguistics and Stylistics (1978), 143-166
4	A Study of Inflectional Change : The Genitive-Accusative in East Slavic Coats, Herbert S. - American Contributions to the Eighth International Congress of Slavists : Zagreb and Ljubljana, September 3-9, 1978 (1978), 234-255
5	Dimensions of Syntactic Change : Evidence from the Long -nt- Participle in Old Czech Texts Fried, Mirjam - American Contributions to the 13th International Congress of Slavists : Ljubljana, August 2003 (2003), 79–92
6	Some Aspects of Change in the Structure and Function of the Contemporary Folk-Tale in Russia and Scotland Warner, E. A. - The Slavonic and East European Review 61 (1983) 1, 78-88
7	Ongoing Change in Russian Dialects in Light of Contemporary Sociolinguistics Levin, Jules F. - American Contributions to the Eighth International Congress of Slavists : Zagreb and Ljubljana, September 3-9, 1978 (1978), 449-464
8	Directions of Morphophonemic Change in Balkan Slavic : the Accentuation of the Present Tense Alexander, R. - American Contributions to the Ninth International Congress of Slavists : Kiev, September 1983 (1983), 9-49
9	Polish Dialect Atlases as a Source for the Study of Lexico-Semantic Change Konnova, V. - The Slavonic and East European Review 56 (1978) 3, 321-328
10	Accelerated Grammatical Change in Carinthian Slovene: Dialect Mixture or „Linguistic Decay“? Priestly, Tom - Canadian Slavonic Papers : an Inter-disciplinary Quarterly Devoted to the Soviet Union and Eastern Europe 30 (1988) 1, 62-80

Bibliography of International Congresses of Slavists (BibSlavKon)