1. Shandong academy of sciences institute of Marine instruments. SBF3-1 wave buoy specification. 2009. 05.
2. The United States Endeco/YSI company. YSI Marine environmental monitoring buoy specification.
3. Tang Di, Wei Ying. Research on the Technology of Storage Medium Data Destruction. Information security and technology, 2012, 03(1).
4. Wang Jian-feng. Data destruction: an important branch of the data security field. Network & Computer Secturity, 2006, (8): 53-54.
5. KOMAKINE T, HONDA N, OUCHI K. Analysis of overwrite spectrum in perpendicular magnetic recording [J]. Journal of Magnetism and Magnetic Materials, 2005, 287: 107-112.