BibSlavKon: 18 hits for M6840 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 M6840 provides 18 hits
1	Maske und Chiffre bei Stanisław Lem Burkhart, Dagmar - Slavistische Studien zum X. Internationalen Slavistenkongress in Sofia 1988 (1988), 315-333
2	Zur Kiever Literatur in Moskau II. Rothe, H. - Slavistische Studien zum IX. Internationalen Slavistenkongress in Kiev 1983 (1983), 417-434
3	La musica e il testo letterario Kauchtschischwili, N. - Mondo slavo e cultura italiana : contributi italiani al IX Congresso Internazionale degli Slavisti Kiev 1983 (1983), 188-207
4	Všeslovanský výbor v Moskve Hrozienčik, Josej - Československé přednášky pro VI. mezinárodní sjezd slavistů v Praze (1968), 499-507
5	K voprosu ob ispravlenii cerkovnych knig v Moskve v XVII veke Hegedüs, Iván - Studia slavica Academiae Scientiarum Hungaricae 58 (2013) 1, 67–76
6	Razvitije massovych form literatury u vostočnych slavjan (XI-XII vv.) Demin, Anatolij Sergejevič - Slavjanskije literatury : VIII meždunarodnyj s“jezd slavistov : Zagreb – Ljubljana, sentjabr’ 1978 g. : doklady sovetskoj delegacii (1978), 166-181
7	Živoje i neživoje v romane A. Platonova „Sčastlivaja Moskva“ Kostov, Heli - Studia slavica finlandensia (1998), 60-73
8	Roľ maski v russkom modernizme: rjaženyje v „Poeme bez geroja“ Achmatovoj Lönnqvist, Barbara - Studia slavica finlandensia (1998), 104-113
9	„Skuľptura, živopis’ i muzyka“ kak filosofskije kategorii russkogo romantizma Böhmig, Michaela - Contributi italiani al XIII Congresso internazionale degli slavisti : (Ljubljana 15–21 agosto 2003) (2003), 309–323
10	Unheard Music : Literary Refrains in the Film A Forgotten Melody for the Flute Chances, Ellen - American Contributions to the Eleventh International Congress of Slavists : Bratislava, August - September 1993 : Literature : Linguistics : Poetics (1993), 36-42

Bibliography of International Congresses of Slavists (BibSlavKon)