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Method for Assessing the Development of Underground Hard Coal Mines on a Regional Basis: The Concept of Measurement and Research Results
Jonek-Kowalska, IzabelaVolume:
11
Language:
english
Journal:
Energies
DOI:
10.3390/en11061370
Date:
May, 2018
File:
PDF, 1.53 MB
english, 2018