Nikolay A. Pushkarevsky, Elena A. Chulanova, Leonid A. Shundrin, Anton I. Smolentsev, Georgy E. Salnikov, Elena A. Pritchina, Alexander M. Genaev, Irina G. Irtegova, Irina Yu. Bagryanskaya, Sergey N. Konchenko, Nina P. Gritsan, Jens Beckmann and Andrey V. Zibarev