Funding for this research was provided by:
Politechnika Poznańska (03/31/DSPB/0358/2018)
Article History
Received: 1 March 2018
Revised: 31 May 2018
Accepted: 1 June 2018
First Online: 12 June 2018
Compliance with ethical standards
:
: The author declares that there is no conflict of interests regarding the publication of this paper.