Keyword variable costs
Variable costs in costs of coal production in coal mines
Polityka Energetyczna – Energy Policy Journal 2010;13(2):131-144
Article Possibilities of decision making resulting from the knowledge about the shares of fixed and variable costs in costs of coal production
Polityka Energetyczna – Energy Policy Journal 2009;12(2):117-129
Fixed and variable costs in hard coal mines
Polityka Energetyczna – Energy Policy Journal 2005;8(Zeszyt specjalny 1):331-343
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| eISSN: | 2720-569X |
| ISSN: | 1429-6675 |
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