Effect of roasting conditions on several chemical constituents of Vietnam Robusta coffee - Van Cuong, Tran; Hong Ling, Liu; Kang Quan, Guo; Duc Tiep, Tran; Nan, Xia; Xian Qing, Chen; Le Linh, Tran (The Annals of the University Dunarea de Jos of Galati. Fascicle VI - Food Technology, 2014)