Author Affiliations +
Tamara G. Pencheva,1 Milen Nenkov,1 Miroslav Jelinek,2 Jan Lancok,2 Jiri Bulir,2 Alexandr Deineka,2 Chao-Nan Xu3
1Univ. of Rousse (Bulgaria)
2Institute of Physics (Czech Republic)
3Kyushu National Industrial Research Institute (Japan)