WoSCC/Scopus indeksēta publikācija
Latvian Journal of Physics and Technical Sciences, 2010, 47(5), 25-32, doi: 10.2478/v10047-009-0022-1
Latvian Journal of Physics and Technical Sciences, 2010, 47(5), 25-32, doi: 10.2478/v10047-009-0022-1