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The 3rd Int. Workshop on Positron and Positronium Chemistry, page. 603 - 608, 1990-01-01

AIP Conference proceedings 218, page. 140 - 146, 1990-01-01

7th Korea-Japan Seminar on New Ceramics, page. 324 - 329, 1990-01-01

90 추계학술발표대회, 1990-10-01

제1회 응고기술 심포지엄, page. 208, 1990-10-01

3rd Int. Conf. on Nitride Compounds, 1990-07-05