Mount Pinatubo and Atmospheric Extinction at Mount John University   Observatory 1987-94
  Atmospheric extinction in the V passband at Mount John University Observatory, New Zealand, from 1987-94 is presented and the effect of the 1991 Mount Pinatubo volcanic eruption is discussed. 
M.C. Forbes, T. Banks, D.J. Sullivan, R.J. Dodd, A.C. Gilmore and P.M.   Kilmartin