Authors
L. Grinberga
Institute of Solid State Physics, University of Latvia, Riga, Latvia
R. K. Sika
Institute of Solid State Physics, University of Latvia, Riga, Latvia
V. Vitola
Institute of Solid State Physics, University of Latvia, Riga, Latvia
S. Varnagiris
Center for Hydrogen Energy Technologies, Lithuanian Energy Institute, Kaunas, Lithuania
M. Urbonavicius
Center for Hydrogen Energy Technologies, Lithuanian Energy Institute, Kaunas, Lithuania
J. Kleperis
Institute of Solid State Physics, University of Latvia, Riga, Latvia