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\bibitem{Gierach_etal2007} Gierach, M. M., Bourassa, M. A., Cunningham, P., O{\textquoteright}Brien, J. J., \& Reasor, P. D. (2007). Vorticity-Based Detection of Tropical Cyclogenesis. \textit{J. Appl. Meteor. Climatol.}, \textit{46}(8), 1214--1229.

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