IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 44, no. 3, page. 295 - 301, 1996-03
X-RAY SPECTROMETRY, vol. 36, no. 3, page. 185 - 190, 2007-05
NUCLEAR FUSION, vol. 40, no. 3Y, page. 575 - 582, 2000-03