M. Khirk (Flerov Laboratory of Nuclear Reactions, JINR, Dubna, M.V. Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow), L. V. Grigorenko (Flerov Laboratory of Nuclear Reactions, JINR, Dubna, National Research Centre "Kurchatov Institute'', Moscow), E. Yu. Nikolskii (National Research Centre "Kurchatov Institute'', Moscow, Flerov Laboratory of Nuclear Reactions, JINR, Dubna), P. G. Sharov (Flerov Laboratory of Nuclear Reactions, JINR, Dubna, Institute of Physics, Silesian University in Opava, Opava)
