BibSlavKon: 697 hits for 13 on page 30

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
291	Ustnaja kuľtura russkich konfessionaľnych grupp : principy sopostaviteľnogo opisanija Nikitina, Serafima Jevgen'jevna - Slavjanskoje jazykoznanije : XIII Meždunarodnyj s`jezd slavistov Ljubljana, 2003 g. : doklady rossijskoj delegacii (2003), 414–431
292	O sile i bessilii purizma : anglicizmy i internacionalizmy i ich vozmožnyje aľternativy (na materiale russkogo, slovenskogo i chorvatskogo jazykov) Pfandl, Heinrich - Voprosy jazykoznanija (2003) 6, 108–122
293	Maintenance of Slovene in Carinthia (Austria) : Grounds for Guarded Optimism? Priestly, Tom - Canadian Slavonic Papers : an Interdisciplinary Journal Devoted to Central and Eastern Europe 45 (2003) 1/2, 95–117
294	Niektoré špecifiká jazykových prejavov amerických Slovákov : (slovansko-neslovanské jazykové kontakty) Ripka, Ivor - XIII. medzinárodný zjazd slavistov v Ľubľane : príspevky slovenských slavistov (2003), 163–169
295	Nacionalna etika i kultura u konceptima nekih reči srpskog jezika Ristić, Stana - Zbornik Matice srpske za slavistiku (2003), 237–253
296	Ulogata na makedonskiot jazik vo formiranjeto i razvitokot na nacionalnata svest (so poseben osvrt na „makedonizmot“ na Stojan Novakovik) Ristovski, Blaže - Prilozi = Contributions 27 (2002) 1/2, 39–57
297	Slog je pomen, pomen je slog : Ivan Cankar: Edina beseda, Ciril Kosmač: Pomladni dan Sajovic, Tomaž - Slavistična revija : časopis za jezikoslovje in literarne vede 51 (2003) Posebna številka, 165–180
298	Hrvatsko sociolingvističko stanje od godine 1790. do hrvatskoga narodnog preporoda Samardžija, Marko - Zbornik zagrebačke slavističke škole 2002 (2003), 259–277
299	Frazem, fraza i parafraza u suvremenom medijskom diskurzu Sesar, Dubravka; Muhvić-Dimanovski, Vesna - Zbornik zagrebačke slavističke škole 2002 (2003), 279–289
300	Statut de la variation régionale dans les travaux des linguistes en Russie soviétique et post-soviétique Schoenenberger, Margarita - Contributions suisses au XIIIe congrès mondial des slavistes à Ljubljana, août 2003 = Schweizerische Beiträge zum XIII. Internationalen Slavistenkongress in Ljubljana, August 2003 (2003), 243–268

Bibliography of International Congresses of Slavists (BibSlavKon)