BibSlavKon: 17 hits for P1880 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 P1880 provides 17 hits
1	Possessive adjectives Nørgård-Sørensen, Jens - Russian nominal semantics and morphology (2011), 193–199
2	Piščeva biografija i slika sveta Ćosić-Vukić, Ana - Zbornik Matice srpske za slavistiku (2003), 299–306
3	Počeci hrvatskog književnog jezika Malić, D. - Prilozi (1973), 83-88
4	Polska geneza powieści warsztatowej Cieślikowska, T. - Z polskich studiów slawistycznych. Seria 4, Nauka o literaturze (1972), 229-234
5	Književni počeci kod Srba u Bosni i Hercegovini Sadžak, Mladenko - Zbornik Matice srpske za slavistiku (2008), 387–402
6	Z dziejów powieści historycznej w Polsce XIX wieku Kulczycka-Saloni, Janina - Z polskich studiów slawistycznych. Seria 3, Nauka o literaturze : prace na VI Międzynarodowy kongres slawistów w Pradze 1968 (1968), 133-158
7	Hrvatski glagoljaši i počeci hrvatskoga književnog jezika Damjanović, Stjepan - Croatica : prinosi proučavanju hrvatske književnosti (1992/1993), 93-106
8	Produktive Dativkonstruktionen : possessive, deontische und temporale Attribution Daiber, Thomas - Deutsche Beiträge zum 14. Internationalen Slavistenkongress : Ohrid 2008 (2008), 103–116
9	Witold Gombrowicz i jego wkład w modernizację polskiej powieści Geambaşu, Constantin - Romanoslavica (2008), 25–33
10	Teorija socialističeskogo realizma segodnja : (pozicii, problemy, perspektivy) Ovčarenko, A. I. - Slavjanskije literatury (1973), 56-78

Bibliography of International Congresses of Slavists (BibSlavKon)