Bergamaschi, P.Schupp, M.Harris, G.W.2010-06-112010-06-111994Applied Optics, 33, 7704-7716.http://hdl.handle.net/10315/4200enHigh Precision Direct Measurements of 13CH4/12CH4 and 12CH3D/12CH4 Ratios in by means of a Long Path Diode Laser Absorption SpectrometerArticlehttp://www.opticsinfobase.org/ao/Issue.cfm