- Research assistant Polish Academy of Sciences, Poznan, 1954—1955. Research assistant department archaeology Adam Mickiewicz University, 1955—1968, assistant professor Institute Archaeology, 1969—1979. Assistant professor Institute Archaeology and Ethnology Nicolaus Copernicus University, Torun, Poland, 1979—1991, professor Poland, since 1992, science director Institute Archaeology and Ethnology Poland, 1979—1981, head department glas history Poland, since 1982, head department medieval and modern archaeology Poland, 1985—1999.
- Author: Glass Production in Roman and Early Byzantine Novae in the Light of Archaeological Sources, Early Medieval Glass Production in Poland, Early Medieval Settlement in Eastern Pomerania, Forms of Settlement in the West-Pomeranian Lake District in the Early Middle Ages, Glass Production in Early Medieval Volin. Chief editor: Archaeologia Historica Polona, 1995, Acta universitatis Nicolai Copernici, 1980.
1954 - 1955
1979 - 1991
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