Institute for Condensed Matter Physics, TU Braunschweig, Braunschweig, Germany;
Institute of Physics of the Polish Academy of Sciences, Warsawa, Poland;
The International Laboratory of Strong Magnetic Fields and Low Temperatures, Wroclaw, Poland;
L.Neel Institute of the National Centre of Scientific Researches of France, Grenoble, France.
University of Basque Country, San Sebastian, Spain;
Argonne National Laboratory, Argonne, USA;
Institute for Microstructural Sciences National Research Council of Canada, Ottawa, Canada;
Chung-Ang University, Seoul, Korea;
Institute of Solid State Physics and Semiconductors of the Belarus Academy of Sciences, Minsk, Belarus;
L.V.Kirensky Institute of Physics Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russia;
Moscow State University, Moscow, Russia;
Institute of Applied Physics of the Moldavian Academy of Sciences, Kishinev, Moldova.