The Tropical Experiment of the Stratosphere-Troposphere Exchange Project (STEP): Science Objectives, Operations, and Summary Findings
Russell, P.B., L. Pfister, and H.B. Selkirk (1993), The Tropical Experiment of the Stratosphere-Troposphere Exchange Project (STEP): Science Objectives, Operations, and Summary Findings, J. Geophys. Res., 98, 8563-8589.