Charles University, Prague (Czech Republic)

Institute of Physics, Tartu (Estonia)

Darmstadt University of Technology (Germany)

Research Institute for Solid State Physics and Optics, Budapest (Hungary)

Institute of High Pressure Physics, Warsaw (Poland)

Institute for nano-ferrous and Rare Metals (Romania)

State Optical Institute , St. Petersburg (Russia)

Institute of Rare Metals and Alloys, Moscow (Russia)

Ivan Franco University, Lvov (Ukraine)

CNRS, Processes, Materials and Solar Energy Laboratory, Font Romeo (France)

Sweet Briar College, Sweet Briar (USA)

Montana State University, Montana (USA)

Wake Forest University, Salem Winston (USA)