BibSlavKon: 341 hits for B1547 on page 10

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 B1547 provides 341 hits
91	Slavjanskata nauka prez XIX v. i problemite na bălgarskija folklor Dinekov, P. - Slavjanska filologija (1973), 109-119
92	The Bulgarian State in Medieval Cartography : (9th-15th century A.D.) Koledarov, P. St. - Études historiques : à ľoccasion du VIIe Congrès International des études slaves, Varsovie, 1973 (1973), 37-54
93	Greece and the Intellectual Bases of the Bulgarian Renaissance Shashko, Ph. - American Contributions to the Seventh International Congress of Slavists : Warsaw, August 21-27, 1973 (1973), 91-121
94	Ranni školi na starija bălgarski knižoven ezik Gălăbov, Ivan - Bălgarski ezik : organ na Instituta za bălgarski ezik pri Bălgarskata akademija na naukite 18 (1968) 2/3, 141-148
95	Anfänge einer Normalisierung des Wortschatzes des bulgarischen Schriftsprache vor 1878 Gutschmidt, Karl - Zeitschrift für Slawistik 13 (1968) 2, 236-243
96	Bălgarite i polskijat văpros prez tretata četvărt na XIX v. Paskaleva, Viržinija - Slavjanska filologija : dokladi i statii za VI meždunaroden kongres na slavistite (1968), 211-226
97	K istorii russko-bolgarskich literaturnych svjazej XX v. Zlydnev, V. I. - Slavjanskije literatury : doklady sovetskoj delegacii (1963), 226-262
98	Kăm văprosa za obrazuvaneto na părvata bălgarska dăržava Petrov, P. Ch. - Slavjanska filologija : materiali za V Meždunaroden kongres na slavistite (1963), 89-112
99	Obštestvenata misăl v părvata bălgarska dăržava (680-1018) Snegarov, I. - Slavjanska filologija : materiali za V Meždunaroden kongres na slavistite (1963), 137-166
100	Problemăt za romantizma v bălgarskata literatura do Osvoboždenieto Dinekov, P. - Slavističen sbornik : po slučaj IV meždunaroden kongres na slavistite v Moskve (1958), 51-87

Bibliography of International Congresses of Slavists (BibSlavKon)