Congress Presentation
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Speaker: Doctor K. Bode (Leipzig, DE)
Speaker: Ms E. Eby (Mounds View, US)
Speaker: Professor A. Polewczyk (Kielce, PL)
Speaker: Doctor M. Seifert (Bernau bei Berlin, DE)
Speaker: Doctor J. Niedziela (Zabrze, PL)
18 March - 20 March 2018
Sessions Presentations