Stratospheric mean ages and transport rates from observations of carbon-dioxide and nitrous-oxide

Boering, K.A., S.C. Wofsy, B. Daube, H.R. Schneider, M. Loewenstein, and J. Podolske (1996), Stratospheric mean ages and transport rates from observations of carbon-dioxide and nitrous-oxide, Science, 274, 1340-1343.