Funding for this research was provided by:
Slovak Scientific Grant Agency VEGA (1/0916/16)
Joint Institute for Nuclear Research in Dubna (04-4-1121-2015/2020, 04-4-1133-2018/2020)
Article History
Received: 4 November 2018
Revised: 31 March 2019
Accepted: 4 May 2019
First Online: 14 May 2019