BibSlavKon: 18 hits for M6840 on page 2

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
11	Lysohorsky’s Project of Poetic Lachian : a Museum Exhibit or a Message for the Future? Marvan, Jiří - Australian Slavonic and East European Studies : (Formerly Melbourne Slavonic Studies) : Journal of the Australian and New Zealand Slavists Association and of the Australasian Association for the Study of the Socialist Countries 6 (1992) 2, 85-96
12	Tendenciji formo- i žanrotvorennja u poľs’kij muzyci 1980-90-ch rokiv : (u konteksti „novoji muzyky“ schidnych slov´jan) Sjuta, Bohdan - XIII Mižnarodnyj z’jizd slavistiv : (Ljubljana, Slovenija 15–21 serpnja 2003 r.) : mystectvoznavstvo, foľklorystyka ta etnolohija slov’jans’kych narodiv : dopovidi (2003), 250–275
13	Slovanská otázka v spoločenskom myslení rakúskych Slovanov : (Slovanský zjazd v Moskve r. 1867 a jeho ideové dozvuky) Ivantyšynová, Tatiana - Československá slavistika. 1988, Lingvistika, historie (1988), 255-264
14	Jesli by v konce XV veka Novgorod oderžal pobedu nad Moskvoj : (ob odnom nesostojavšemsja variante istorii russkogo jazyka) Isačenko, A. V. - Wiener slavistisches Jahrbuch : Beiträge österreichischer Slavisten zum VII. Internationalen Slavistenkongress Warschau 1973 (1973), 48-55
15	Rječnik crkvenoslavenskoga jezika iniciran na IV. međunarodnom slavističkom kongresu u Moskvi 1958. godine : (u povodu 50. obljetnice inicijative) Nazor, Anica - Vidjeti Ohrid : referati hrvatskih sudionica i sudionika za XIV. Međunarodni slavistički kongres : (Ohrid, 10.–16. rujna 2008.) (2008), 65–82
16	Ljutneva muzyka epochy renesansu ta jiji roľ u rozvytku muzyčnoho mystectva Poľšči, Ukrajiny i Bilorusi XVI–XVII stoliť Kornij, Lidija - Slov`jans’ki obriji (2013), 66–73
17	Ruś, Ukraina, Ruthenia, Wielkie Księstwo Litewskie, Rzeczpospolita, Moskwa, Rosja, Europa środkowo-wschodnia : o wielowarstwowości i polifunkcjonalizmie kulturowym Brogi Bercoff, Giovanna - Contributi italiani al XIII Congresso internazionale degli slavisti : (Ljubljana 15–21 agosto 2003) (2003), 325–387
18	Early British Acquaintance with Russian Popular Song and Music : (the Letters and Journals of the Wilmont Sisters) : in Memory of Mikhail Pavlovich Alekseyev Cross, A. G. - The Slavonic and East European Review 66 (1988) 1, 21-34

Bibliography of International Congresses of Slavists (BibSlavKon)