1. A novel laser screen velocity measuring system for projectiles;Zhao;ACTA Armamentarii,2001
2. Projectile velocity measurement technology based on large effective area laser screen;Zhao;J Test Measur Technol,2005
3. Research on Laser-screen-based Velocity Measuring Technology for High-speed Moving Objects;Zhao,2006
4. R.J. Schultz, Guide to Retroreflection Safety Principles and Retroreflective Measurements, November 2006. www.roadvista.com.
5. Measurement and characteristic of angular reflectance for cube-corners and microspheres;Seward;Opt Eng,1999