TY - JOUR A1 - Friedfeld, S A1 - Fraser, M P A1 - Lancaster, D G A1 - Leleux, D A1 - Rehle, D A1 - Tittel, F K T1 - Field intercomparison of a novel optical sensor for formaldehyde quantification. Y1 - 2000/07/15 N1 - R828598 N1 - R826694C731 JF - GEOPHYSICAL RESEARCH LETTERS J1 - GEOPHYS RES LETT VL - 27 IS - 14 SP - 2093 EP - 2096 ER - TY - JOUR A1 - Lancaster, D G A1 - Fried, A A1 - Wert, B A1 - Henry, B A1 - Tittel, F K T1 - Difference-frequency-based tunable absorption spectrometer for detection of atmospheric formaldehyde. Y1 - 2000/08/20 N1 - R826694C731 JF - APPLIED OPTICS J1 - APPL OPTICS VL - 39 IS - 24 SP - 4436 EP - 4443 ER -