Pivi, M. T. F.; King, F. K.; Kirby, R. E.; Ruabenheimer, T. O.; Stupakov, G. & Le Pimpec, F. Sharp Reduction of the Secondary Electron Emission Yield from Grooved Surfaces, article, November 28, 2007; (https://digital.library.unt.edu/ark:/67531/metadc895140/m1/1/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .