1. Traffic incident detection: sensors and algorithms;Weil;Mathl. Comput. Model.,1998
2. Field test of nonintrusive traffic detection technologies;Gribbon;Mathl. Comput. Model.,1998
3. H.R. Sampey, Method and apparatus for analyzing traffic and a sensor therefore, United State Patent, Patent Number 5,877,705 (2 March 1999).
4. J.I. Ko, A new loop detector for improving low speed performance, Master's thesis, Seoul National University, 2000.
5. Development of a traffic volume measuring device using AMR sensor;Kang,2002