Faculty of Technical and Nuclear Physics, Czech Technical University, Prague, Břehová 7, Praha 1
A. Vančura
Institute of Solid State Physics, Czechosl. Acad. Sci., Prague, Cukrovarnická 10, Praha 6
J. Šternberk
Electrotechnical Faculty, Czech Technical University, Prague, Cukrovarnická 10, Praha 6
P. Kocian
Faculty of Technical and Nuclear Physics, Czech Technical University, Prague, Břehová 7, Praha 1
Z. Hůlek
Institute for the Planning of Science, Czechosl. Acad. Sci., Prague, NáodnÍ 3, Praha 1
J. Vlachý
Institute for the Planning of Science, Czechosl. Acad. Sci., Prague, NáodnÍ 3, Praha 1
J. Vlachý