1. Joint Institute for Nuclear Research, Bogoliubov Laboratory of Theoretical Physics, Dubna, Moscow Region, Russian Federation
2. Department of Nuclear Physics and Biophysics, Comenius University, Mlynská dolina F1, SK–842 15, Bratislava, Slovakia
3. Czech Technical University in Prague, Jugoslávských partyzán 1580/3, Prague, CZ-12800, Czech Republic