1. Alkali Metal, Calcium Fluorosilicate Glass-Ceramic Articles;McCarthy;United States Patent, 4,386,162,1983
2. Surface properties of magnetic rigid disks for high‐density data storage
3. Advantage and Challenge of non-metallic substrates for rigid disk applications;Tsai,1992
4. Trans. ASME;Bhushan;J. Tribol.,1989
5. Studies on Head/Disk Contact Area Increase during Contact Start/Stop and Continuous Drag Testing of Thin Film Discs;Koka;Trib. and Mech. of Magn. Storage Syst. SP-29,1991