Mahlman, J. D., D. G. Andrews, T. Hartmann, T. Matsuno, and R. G. Murgatroyd, 1984: Transport of Trace Constituents in the Stratosphere. In Dynamics of the Middle Atmosphere, Terra Scientific Publishing Co., 387-416.

Abstract: Our understanding of stratospheric trace constituent transport is reviewed, beginning with the evolution of viewpoints on the subject over the past half century. We then discuss the available observed characteristics of trace constituents and the challenges posed by them.
To provide a framework for further developments, we present a simplified conceptual view of processes leading to irreversible transport. Next, methods of approach to such problems are outlined, including discussions of possibilities for physically based parameterized transport models. Finally, we pose a set of unanswered questions as possible guides to future research on the subject.