Effects of Cd Contamination on the root exudates of Sonchus asper L. Hill.
QIN Li, LI Yuan, ZU Yuanqun, HE Yongmei, WANG Jixiu, CHEN Jianjun
Ecology and Environment . 2012, (3): 540 -544 .  DOI: 10.16258/j.cnki.1674-5906(2012)03-0540-05