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Crutzen, P. J.. (1974).
Estimates of possible future ozone reductions from continued use of fluoro-chloro-methanes (CF <sub/>2</sub> Cl <sub/>2</sub> , CFCl <sub/>3</sub> ). Geophysical Research Letters, 1(5), 205–208.
doi:10.1029/gl001i005p00205
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research
