1. ELAS, Savanoriu Ave 235, LT-02300 Vilnius, Lithuania
2. Center for Physical Sciences and Technology, Savanoriu Ave 231, LT-02300 Vilnius, Lithuania
3. Hofmeister, s.r.o, Daimlerova 9, 32600 Plzeň, Czech Republic
4. University of West Bohemia, Univerzitni 22, Pilsen 306 14, Czech Republic