TY - Bulletin of Botanical Research A1 - DU Qing-Xin, QING Jun, ZHU Jing-Le, DU Hong-Yan, DU Lan-Ying T1 - Pigments and Active Ingredients in Leaves of Seven Eucommia ulmoides Variation-types Y1 - 2017-05-15 JF - Bulletin of Botanical Research JO - Bulletin of Botanical Research SP - 468 EP - 473 VL - 37 IS - 3 UR - https://bbr.nefu.edu.cn N1 - 10.7525/j.issn.1673-5102.2017.03.019 ER -