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Beata Szydlo. Main Mining Institute. Press Conference. 05.10.2015
5 October 2015
Modern Coal Mining Conference. Katowice. 30.09.2015
30 September 2015
Modernity Conference. Katowice. 30.09.2015
Coal Industry. Kompania Weglowa. Press Conference. 24.09.2015
24 September 2015
