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Chen, L. S., Chen, G. J., & Tamborski, C. (1984). Fluoro-ketones VII. Synthesis of perfluoro mono- and di-ketones from perfluoro-grignard or lithium reagents and diethyl carbonate and diethyl oxalate. Journal of Fluorine Chemistry, 26(3), 341–358. doi:10.1016/s0022-1139(00)80935-5 
10.1016/S0022-1139(00)80935-5