Serne, R. J.; Martin, W. J.; LeGore, V. L.; Lindenmeier, C. W.; McLaurine, S. B.; Martin, P. F. C. et al. Leach tests on grouts made with actual and trace metal-spiked synthetic phosphate/sulfate waste, report, October 1, 1989; (https://digital.library.unt.edu/ark:/67531/metadc1070380/m1/1/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .