Authors
Marek Szyguła
KOMAG Institute of Mining Technology, Gliwice, Poland
Karel Perutka
Tomas Bata University in Zlin, Faculty of Applied Informatics
Krzysztof Turczyński
KOMAG Institute of Mining Technology, Gliwice, Poland
Krzysztof Stankiewicz
KOMAG Institute of Mining Technology, Gliwice, Poland