1. Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, Košice 04001, Slovakia
2. School of Engineering and Materials Science, Queen Mary University of London, Mile and Road, E1 4NS London, United Kingdom
3. Department of Electronics and Computer Technology, Sumy State University, Ryms’koho-Korsakova St. 2, Sumy 40007, Ukraine
4. CRISMAT, CNRS, Normandie University, ENSICAEN, UNICAEN, 6 Boulevard du Maréchal Juin, Caen 14000, France
5. Institute of Physics of the Czech Academy of Sciences, Cukrovarnická 112/10, Praha 6 16200, Czech Republic
6. Faculty of Mathematics and Physics, Charles University, V Holešovičkách 747/2, Praha 8 18000, Czech Republic
7. Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, Košice 04001, Slovakia
8. TRATEC, s.r.o., Bratislavská 10, Prešov 08001, Slovakia