1. Belarussian State University, 4 Nezavisimosti, BY-220030, Minsk, Belarus
2. JSK Integral, 12 Korzhenevskogo, BY-220108 Minsk, Belarus
3. Joint Institute for Nuclear Research, 6 Joliot-Curie, RU-141980 Dubna, Russia
4. Ruhr-Universität Bochum, 150 Universitätsstr., D-44780 Bochum, Germany
5. Lublin University of Technology, Nadbystrzycka 38d, 20-618 Lublin, Poland