BibSlavKon: 12 hits for C4615 on page 2

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 C4615 provides 12 hits
11	Neues zur Erklärung des Nadgrobnoe slovo von Grigorij Camblak auf den Moskauer Metropoliten Kiprian Holthusen, Johannes - Slavistische Studien zum VI. Internationalen Slavistenkongress in Prag 1968 (1968), 372-382
12	The Heresy of the „Judaizers“ in 15th century Moscovy and the Production of the First Complete Slavonic Bible : Is There a Connection? Howlett, Jana; Osinkina, Lyubov - Papers to be presented at the XIV International Congress of Slavists, Ohrid, 10-16.09.2008 [online] (2008), 28–36

Bibliography of International Congresses of Slavists (BibSlavKon)

Neues zur Erklärung des Nadgrobnoe slovo von Grigorij Camblak auf den Moskauer Metropoliten Kiprian

The Heresy of the „Judaizers“ in 15th century Moscovy and the Production of the First Complete Slavonic Bible : Is There a Connection?