BibSlavKon: 74 hits for P1580 on page 4

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 P1580 provides 74 hits
31	Russo-Polish Relations in the Second Half of the Seventeenth Century O'brien, B. - American Contributions to the Seventh International Congress of Slavists : Warsaw, August 21-27, 1973 (1973), 53-68
32	Nationality Policy in the Western Borderlands of the Russian Empire : 1881-1914 Thaden, E. C. - American Contributions to the Seventh International Congress of Slavists : Warsaw, August 21-27, 1973 (1973), 69-78
33	Starožytnja hidronimija Centraľnoho Polissja v zahaľnoslov`jans’komu aspekti Karpenko, Oľha - Slov`jans’ki obriji (2008), 239–263
34	Literary Polemics in/on Polish Modernism : the Case of Gombrowicz and Schulz De Bruyn, Dieter - Slavica gandensia (2008), 9–22
35	On the Meaning of Prepositional Cases: the Locative and the Accusative in Polish Expressions of Time Bacz, Barbara - Canadian Slavonic Papers : an Interdisciplinary Journal Devoted to Central and Eastern Europe 39 (1997) 3/4, 417-437
36	Linguistic Innovation from Defunct Morphology: Old Dual Endings in Polish and Russian Janda, Laura A. - American Contributions to the Twelfth International Congress of Slavists : Cracow, August - September 1998 : Literature, Linguistics, Poetics (1998), 431-443
37	Elipsis in Polish : a first Approach with Special Reference to VP Ellipsis Fellerer, Jan - 13th International Congress of Slavists [online] (2003), 14 s.
38	The Endangered Language : the Acquisition of the Case System by Polish Children in Sweden Laskowski, Roman - Studies in Polish Morphology and Syntax (1993), 121-162
39	The Syntax of the Numeral in Byelarussian, Compared with Ukrainian, Russian and Polish Akiner, S. - The Slavonic and East European Review 61 (1983) 1, 55-68
40	An Abstract Phonological Analysis of the Sequence ,cvrc’ in Contemporary Standard Polish De Armond, R. C. - Canadian Contributions to the Seventh International Congress of Slavists : Warsaw, August 21-27, 1973 (1973), 165-183

Bibliography of International Congresses of Slavists (BibSlavKon)