Pool, K. H.; Delegard, C. H.; Schmidt, A. J.; Thornton, B. M. & Silvers, K. L. K Basin Sludge Conditioning Process Testing Project Results from Test 4, ''Acid Digestion of Mixed-Bed Ion Exchange Resin'', report, April 2, 1999; (https://digital.library.unt.edu/ark:/67531/metadc694506/m1/1/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .