Grassl, Hartmut MPI for Meteorology, Max Planck Society;
Kley, D., Crutzen, P. J., Smit, H. G. J., Vomel, H., Oltmans, S. J., Grassl, H., et al. (1996). Observations of near-zero ozone concentrations over the convective Pacific: Effects on air chemistry. Science, 274(5285), 230-233. doi:10.1126/science.274.5285.230.