Precombustion removal of hazardous air pollutant precursors. Second quarterly technical progress report, January 1, 1996--March 31, 1996, report, April 30, 1996; (https://digital.library.unt.edu/ark:/67531/metadc672347/m1/1/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .