[IEEE Application of the Conversion Research Results for International Cooperation. SIBCONVERS'99. Third International Symposium - Tomsk, Russia (18-20 May 1999)] Application of the Conversion Research Results for International Cooperation. SIBCONVERS'99. Third International Symposium. Proceedings (Cat. No.99EX246) - Transformation of CO/sub 2/ laser emission into submillimeter range for gas analysis of the atmosphere