Funding for this research was provided by:
Narodowym Centrum Nauki (2015/19/D/ST1/01184)
Austrian Science Fund (J4276-N35)
Ostravská Univerzita v Ostravě (IRP201824)
Akademia Górniczo-Hutnicza im. Stanislawa Staszica (Statutory Task)
Article History
Received: 30 December 2019
First Online: 1 April 2020