M. S. Khirk (Flerov Laboratory of Nuclear Reactions, JINR, Dubna, Russia), L. V. Grigorenko (Flerov Laboratory of Nuclear Reactions, JINR, Dubna, Russia), D. E. Lanskoy (Faculty of Physics, Lomonosov Moscow State University, Moscow, Russia), P. G. Sharov (Institute of Physics in Opava, Silesian University in Opava, Opava, Czech Republic)
