标题:The influence of cadmium, copper, lead, and zinc on the distribution and evolution of metallophytes in the British Isle 作者:A. J. M. Baker1 and J. Proctor2 期刊:Plant Systematics and Evolution,Volume 173, Numbers 1-2 / 1990年3月,91-108 连接;http://www.springerlink.com/content/mh410224294882h5/