TY - JOUR AU - M. Trudeau AU - Pin Chen AU - G de Andreade Garcia AU - Leo Hollberg AU - P Tans C2 - Applied Optics DA - 2006-06-01 00:06:00 LA - en M1 - 45 No 17 PB - Applied Optics PY - 2006 TI - Stable Isotopic Analysis of Atmospheric Methane by Infrared Spectroscopy by Use of Diode Laser Difference-Frequency Generation ER -