1999 Digest USNC/URSI National Radio Science Meeting, page. 144, 1999-07-01
Proceedings of 2nd Asia-Pacific Engineering Research Forum on Microwaves and Electromagnetic Theory, 1998-10-01
1998 Korea-Japan AP/EMC/EMT Joint Conference Porceedings, page. 165-168, 1998-09-01
USNC/URSI National Radio Science Meeting 1998, page. 281, 1998-06-01
1998 Korea-Japan AP/EMC/EMT Joint Conference Porceedings, page. 165 - 168, 1998-01-01
1996 Korea-Japan Joint Conference, page. 61 - 65, 1996-08-01
1996 URSI Digest, page. 255, 1996-07-01
Asia-Pacific Microwave Conference Digest, page. 174 - 177, 1995-10-01
Asia-Pacific Microwave Conference Digest, page. 117 - 119, 1995-10-01
43rd ARFTG Conference Digest, page. 112 - 116, 1994-05-01