Bibliography of International Congresses of Slavists (BibSlavKon)

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 N6666 provides 3 hits
1	Altpolabisch-südslawische Entsprechungen im Namenmaterial zwischen Elbe und Oder Schlimpert, Gerhard - Zeitschrift für Slawistik 33 (1988) 2, 153-158
2	K istorii bani v svete jeje naimenovanij v slavjanskich jazykach Vahros, I. S. - Scando-Slavica (1963), 153-168
3	Ješče raz ob etimologii naimenovanija cveta bosyj/busov Moiseenko, Viktor - Studia slavica Academiae Scientiarum Hungaricae 53 (2008) 2, 407–411

Bibliography of International Congresses of Slavists (BibSlavKon)

Altpolabisch-südslawische Entsprechungen im Namenmaterial zwischen Elbe und Oder

K istorii bani v svete jeje naimenovanij v slavjanskich jazykach

Ješče raz ob etimologii naimenovanija cveta bosyj/busov