BibSlavKon: 72 hits for P1728 on page 6

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 P1728 provides 72 hits
51	Kăm periodizacijata na istorijata na ezika (vărchu material ot bălgarski i drugi slavjanski ezici) Cojnska, R. - Slavjanska filologija (1983), 135-144
52	Funkce sufixů -ikъ a – ьcь v slovanských jazycích : (příspěvek k otázce zpodstatňování adjektiv a participií) Čech, Eduard - Saopštenja i referati : III međunarodni kongres slavista (slovenskih filologa) : 18.–25.IX.1939 = Communications et rapports : IIIème congrès international des slavistes (philologues slaves) (1939), 15-17
53	Latin-Protoslavic Language Contacts and their Reflexes in Early Old Church Slavonic Texts Del Gaudio, Salvatore - Contributi italiani al XV Congresso internazionale degli slavisti : (Minsk, 20–27 agosto 2013) (2013), 49–75
54	Constructions Based on the Russian Adverbial Participle govorja and their Function in Discourse and Grammar Birzer, Sandra - Deutsche Beiträge zum 15. Internationalen Slavistenkongress : Minsk 2013 (2013), 67–77
55	Il paradosso dei Paradoxa Stoicorum di Cicerone nella presunta traduzione del principe Kurbskij Tomelleri, Vittorio Springfield - Contributi italiani al XV Congresso internazionale degli slavisti : (Minsk, 20–27 agosto 2013) (2013), 157–195
56	Vrste glagolskega dejanja v delih slovenskih protestantskih piscev 16. stoletja in tuje prevodne predloge Merše, Majda - Slavistična revija : časopis za jezikoslovje in literarne vede 46 (1998) 1/2, 55-71
57	The Artistic Function of Grammar in Prose Texts: The Modal Particle bylo in the Prose of Goncharov and Dostoevskii Pavlovszky, Maria - American Contributions to the Twelfth International Congress of Slavists : Cracow, August - September 1998 : Literature, Linguistics, Poetics (1998), 142-156
58	Latinské participium futuri v staroslověnském překladu : (responze latinské syntaxe v českocsl. památkách I.) Konzal, Václav - Slavia : časopis pro slovanskou filologii 63 (1994) 2, 193-205
59	Observations sur la troisième personne du pluriel du présent et sur le participe présent actif en bulgare moderne Bernard, Roger - Communications de la délégation française et de la délégation suisse : VIe Congrès international des slavistes : Prague, 7-13 août 1968 (1968), 7-16
60	O vyraženii prinadležnosti pritjažateľnym prilagateľnym i roditeľnym padežom prinadležnosti v russkom jazyke XVIII-XIX vv. Widnäs, M. - Scando-Slavica (1958), 166-175

Bibliography of International Congresses of Slavists (BibSlavKon)