Graph Structure Model, article, January 1, 1990; (https://digital.library.unt.edu/ark:/67531/metadc1448751/m1/1/: accessed June 5, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .
Graph Structure Model, article, January 1, 1990; (https://digital.library.unt.edu/ark:/67531/metadc1448751/m1/1/: accessed June 5, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .