Cologne (Germany), September 1990. Research
meeting.
From the left: (1) Lech Krzyżaniak, Ph.D;
(2) Michał
Kobusiewicz, Ph.D. (head of the Department of Archaeology
of Greater Poland
and Pomerania in Poznań, Institute of History
of Material Culture,
Polish Academy of Sciences);
(3) Pierre
M. Vermeersch (Katholieke Universiteit te Leuven, Belgium).