Draley, J. E.; Krakowski, R. A.; Coultas, T. A. & Maroni, V. A. Engineering design study of a reference theta-pinch reactor (RTPR): environmental impact study, report, March 1, 1975; (https://digital.library.unt.edu/ark:/67531/metadc874821/m1/1/: accessed April 18, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .