A positronium beam and positronium reflection from LiF, article, 1987~; (https://digital.library.unt.edu/ark:/67531/metadc1091261/m1/1/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .
A positronium beam and positronium reflection from LiF, article, 1987~; (https://digital.library.unt.edu/ark:/67531/metadc1091261/m1/1/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .