BibSlavKon: 697 hits for 13 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 Volume 13 provides 697 hits
31	Evroazijski stepski pojas kao činilac jezičke i kulturne prošlosti slovena Loma, Aleksandar - Zbornik Matice srpske za slavistiku (2003), 133–148
32	Ľalfabeto glagolitico tra τέχνη e σοφία Lomagistro, Barbara - Contributi italiani al XIII Congresso internazionale degli slavisti : (Ljubljana 15–21 agosto 2003) (2003), 131–177
33	On the Problems of Identifying a „Preslav Redaction“ of the Psalter Macrobert, Catherine - 13th International Congress of Slavists [online] (2003), 15 s.
34	Czemu obiad, słoweń. obed, ros. обед itd., ale objeść, słoweń. objesti, ros. объесть itd.? Mańczak, Witold - Z polskich studiów slawistycznych. Seria 10, Językoznawstwo : prace na XIII Międzynarodowy kongres slawistów w Lublanie 2003 (2002), 137–141
35	Voprosy issledovanija drevnejšej slavjanskoj gimnografii : (Irmosy: raznočtenija i istorija teksta Matejko, Ľubor - XIII. medzinárodný zjazd slavistov v Ľubľane : príspevky slovenských slavistov (2003), 21–48
36	Zur Nominaldetermination im Altostslavischen : (Pronomina in den Birkenrindentexten) Mendoza, Imke - Zeitschrift für Slavische Philologie 61 (2002) 2, 291–311
37	Issledovanija po slavjano-rumynskoj filologii pisatelja Aleksandra Odobesku (Alexandru Odobescu) Mihâilâ, Gheorge - Romanoslavica (2002), 9–24
38	Refleksy praslav. *CelC v vostočnoslavjanskich jazykach Minlos, Filipp R. - Slavjanskoje jazykoznanije : XIII Meždunarodnyj s`jezd slavistov Ljubljana, 2003 g. : doklady rossijskoj delegacii (2003), 389–394
39	Du „sacré“ au „profane“ dans ľévolution sémantique : (sur les slavonismes roumains) Mitu, Mihai - Romanoslavica (2002), 25–36
40	Leksičeskaja evoljucija v cerkovnoslavjanskom Moldovan, Aleksandr Michajlovič - Slavjanskoje jazykoznanije : XIII Meždunarodnyj s`jezd slavistov Ljubljana, 2003 g. : doklady rossijskoj delegacii (2003), 395–413

Bibliography of International Congresses of Slavists (BibSlavKon)