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Gurdip Singh; Sumitra Maurya; M.P. deLampasona; Cesar A.N. Catalan. (2007). A comparison of chemical, antioxidant and antimicrobial studies of cinnamon leaf and bark volatile oils, oleoresins and their constituents. , 45(9), 0–1661. doi:10.1016/j.fct.2007.02.031 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research