Dymaczewo near Poznań. International Symposium "Origin and Early Development
of Food-producing Cultures in North-Eastern Africa", September 9^th-13^th, 1980.
Opening ceremony. Participants of the Symposium.
From the right: Michał Kobusiewicz, Ph.D.,
(Institute of Archaeology and Ethnology, Polish Academy of Sciences - Poznań Branch),
Lech Krzyżaniak, Ph.D.