Piramanayagam, S. N. (2007). "Perpendicular recording media for hard disk drives". Journal of Applied Physics102 (1): 011301–011301–22. doi:10.1063/1.2750414. Bibcode: 2007JAP...102a1301P.
Piramanayagam, S. N. (2007). "Perpendicular recording media for hard disk drives". Journal of Applied Physics102 (1): 011301–011301–22. doi:10.1063/1.2750414. Bibcode: 2007JAP...102a1301P.