Brusso, J. A.; Mikkola, D. E.; Bloom, G.; Lee, R. S. & Von Holle, W. Use of the LLNL 40 kV electric gun to study the shock response of 21-6-9 stainless steel, article, July 15, 1987; (https://digital.library.unt.edu/ark:/67531/metadc1092668/m1/1/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .