RT Journal T1 GC-MS analysis of the chemical constituents of the essential oil from the leaves of yacon (Smallanthus sonchifolia) A1 Jingwei LI, Jian LIU, Hai LAN, Mingmin ZHENG, Tingzhao RONG PB Front. Agric. China FD 2009-03-05 YR 2009 JF Frontiers of Agriculture in China JO Front. Agric. China VO 3 IS 1 SP 40 DO 10.1007/s11703-009-0008-z K1 GC-MS;chemical constituent;essential oil;Smallanthus sonchifolia LK {https://academic.hep.com.cn/fag/EN/article/article_481.shtml}