1. High Magnetic Saturation Poles for Advanced Perpendicular Writers
2. O. Heinonen, K.Z. Gao, Extension of perpendicular recording, J. Magn. Magn. Mater. 17pB-02, PMRC, 2007, submitted for publication.
3. 300Gb/in2 Samsung product announcement, press release, March 2007, Seagate product release, January 21, 2008 〈http://www.seagate.com/www/en-us/products/laptops/momentus/momentus_5400.4/〉 etc.
4. 520Gb/in2 demonstration Western Digital, PMRC, October 2007.
5. DTR 602Gb/in2 TDK CETAC release, 2007.