Diatom response to heavy metal pollution and nutrient enrichment in an urban lake: evidence from paleolimnologyXu Chen, Changan Li, Suzanne McGowan and Xiangdong YangAnn. Limnol. - Int. J. Lim., 50 2 (2014) 121-130DOI: https://doi.org/10.1051/limn/2014004