REVIEW OF SCIENTIFIC INSTRUMENTS, vol. 81, no. 8, 2010-08
NUCLEAR FUSION, vol. 41, no. 10, page. 1515 - 1523, 2001-10
PLASMA SOURCES SCIENCE & TECHNOLOGY, vol. 24, no. 1, page. 15031 - 15031, 2015-02
THIN SOLID FILMS, vol. 518, no. 22, page. 6690 - 6693, 2010-09-01
NUCLEAR FUSION, vol. 40, no. 3Y, page. 575 - 582, 2000-03
PHYSICS OF PLASMAS, vol. 14, no. 10, 2007-10