À propos de cet article
Publié en ligne: 31 oct. 2020
Pages: 73 - 83
Reçu: 13 juil. 2020
Accepté: 21 août 2020
DOI: https://doi.org/10.21307/acee-2020-025
Mots clés
© 2020 Natalia Generowicz published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
GENEROWICZ, Natalia
Mineral and Energy Economy Research Institute of the PASKraków, Poland