Bibliography of Slavic Publications from the German Democratic Republic 1946-1986 (BibSlawPub)

The Bibliography of Slavic Publications from the German Democratic Republic 1946-1986 (BibSlawPub) was converted from the the five volumes printed publication to a database and contains about 19.600 records. The overview for the volumes can be found here. The Classification overview is here.

Your search for M6645 provides 2 hits
1	Zur Kolonisation der Ostslawen in der Zeit bis zum Mongoleneinfall in die Rus' Widera, B. - in: Zeitschrift für Slawistik. Berlin. 9 (1964) S. 91-114.
2	Wuknjenje serbšćiny we wosobinskim a towaršnostnym zajimje. Někotre tendency a aspekty wukubłanje na SRŠ "Dr. Jan Cyž" w Minakale Nowak, B. - in: Rozhlad 36 (1986) S. 216-219

Bibliography of Slavic Publications from the German Democratic Republic 1946-1986 (BibSlawPub)

Zur Kolonisation der Ostslawen in der Zeit bis zum Mongoleneinfall in die Rus'

Wuknjenje serbšćiny we wosobinskim a towaršnostnym zajimje. Někotre tendency a aspekty wukubłanje na SRŠ "Dr. Jan Cyž" w Minakale