Author Details

Štubňa, Igor, <p class="MsoNormal" style="text-align: center;" align="center"><em><span style="font-family: 'Times New Roman','serif'; mso-bidi-font-family: Calibri;" lang="EN-US">Dpt. of Physics, Constantine the Philosopher University, A. Hlinku 1, 949 74 Nitra, Slova