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 Björnflaten, Jan Ivar provides 2 hits
1	Pskovskije govory v obščeslavjanskom kontekste Björnflaten, Jan Ivar - Norvežskije doklady na XI-om s“jezde slavistov, Bratislava, sentjabr’ 1993 g. (1994), 7-21
2	Reflections on the Transformation of the Old East Slavic Verbal System Bjørnflaten, Jan Ivar - Južnoslovenski filolog (2013), 203–222

Bibliography of International Congresses of Slavists (BibSlavKon)

Pskovskije govory v obščeslavjanskom kontekste

Reflections on the Transformation of the Old East Slavic Verbal System