Ksepko, Ewelina
Klimontko, Joanna
Kwiecinska, Anna
Funding for this research was provided by:
Research Fund for Coal and Steel (No 710078)
The Ministry of Science and Higher Education Poland (financial resources on science in 2016-2019)
Article History
Received: 14 October 2018
Accepted: 22 March 2019
First Online: 5 April 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.