1. and , Interoperable 5.8 GHz DSRC systems as basis for European wide ETC implementation, in Proceedings of 27th European Microwave Conference, Jerusalem, Israel, September 8–12, 1997. pp. 139–145.
2. Development and application of EM absorbers for ITS, in Microwave Workshops and Exhibition 2004 (MWE 2004), Pacifico Yokohama, Japan, November 10–12, 204. Microwave Workshop Digest, WS15–2.
3. and , A theoretical study of wave absorber using resistive-film for ETC, in Proceedings of 2001 Korea/Japan AP/EMC/EMT Joint Conference, Taejon, Korea, September 10–11, 2001. pp. 246–249.
4. , , , and , An improvement of environment for ETC by using transparent wave absorber, in Proceedings of IEICE General Conference, Tokyo, Japan, March 2002. SB 2–1.
5. Specifications: ETC-D00500P Ver. 7.0, 2000.