Cholia, Shreyas & Meyer, Nancy. A beta test of linear tape-open (LTO) ultrium data storage technology, report, October 31, 2001; (https://digital.library.unt.edu/ark:/67531/metadc739552/m1/1/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .