Large Scale Accelerator Production of 225Ac: Effective Cross sections for 80-200 MeV Protons Incident on 232Th Targets Journal December, 2016
"Parent Radionuclides for Generators: Ge-68, Sr-82, Sr-90, W-188"; Chapter 1 "Introduction" and Chapter 5 "Reactor Production and Processing of Tungsten-188" Book Chapter May, 2010