Authors
J. Ehnberg
Chalmers University of Technology, Electrical Engineering, Göteborg, Sweden
O. Lennerhag
Ludvika, Sweden
E. Hillberg
RISE Research Institutes of Sweden, Sweden
A. Perez
Ludvika, Sweden
A. Mutule
Institute of Physical Energetics, Riga, Latvia
I. Zikmanis
Institute of Physical Energetics, Riga, Latvia