1. OH. Hung-Kuk, Conventional metallic bonding and three-dimensional crystallizing π-bondings, The Korea Science and Engineering Foundation–The Royal Swedish Academy of Engineering Science Seminar, Stockholm, Sweden, 9 November, 1995, pp. 1–2.
2. OH. Hung-Kuk (Ed.), Behaviours of three-dimensional crystallizing π-bondings, in: Engineering Science, Ajou University Press, South Korea, ISBN 89-86161-03-793400 (1995) pp. 63–68; 265–266; 282; 344–345.
3. OH. Hung-Kuk, Three-dimensional crystallizing π-bonding and π-far infrared rays, in: Proceedings of the Korean Jungshin Science Symposium, Seoul, South Korea, 13 April, 1996, pp. 82–97.
4. OH. Hung-Kuk, Three-dimensional crystallizing π-bondings and superconduction, in: Proceedings of the Third IUMRS International Conference in Asia, Seoul, South Korea, 17–20 October, 1995, pp. 99–105.
5. OH. Hung-Kuk, Laws of electro-magnetics and three-dimensional crystallizing combined π-bonding orbitals, in: Proceedings of Symposium 95 on Theoretical Solid State Physics, Daeduk, South Korea, Sponsored by Korean Physics Society, January 25–27 1995, pp. 44–45.