Ren, X., J. Mao, W.H. Brune, C.A. Cantrell, R.L. Mauldin, R.S. Hornbrook, E. Kosciuch, J.R. Olson, J.H. Crawford, G. Chen, and H.B. Singh (2012), Airborne intercomparison of HOx measurements using laser-induced fluorescence and chemical ionization mass spectrometry during ARCTAS, Atmos. Meas. Tech., 5, 2025-2037.