X-RAY ABSORPTION OF NITROGEN-DOPED AMORPHOUS CARBON FILMS FOR DETERMINING SP<SUP>2</SUP>/SP<SUP>3</SUP> BONDING CONCENTRATIONS Article Hamilton T., Foursa M., Hirose A., Moewes A. Radiation Physics and Chemistry. Elsevier Science Publishing Company, Inc.. Vol. 75. 2006. P. 1613-1616
RESONANT TRANSPARENCY OF MATERIALS WITH NEGATIVE PERMITTIVITY Article Fourkal E., Velchev I., Ma C.-M., Smolyakov A. Physics Letters, Section A: General, Atomic and Solid State Physics. Vol. 361. 2007. P. 277-282