Application of fractional differential equation to interpret the dynamics of dissolved heavy-metal uptake in streams at a wide range of scalesMary Hastings Puckett, Yong Zhang, Bingqing Lu, YueHan Lu, HongGuang Sun, Chunmiao Zheng and Wei WeiEur. Phys. J. Plus, 134 8 (2019) 377DOI: https://doi.org/10.1140/epjp/i2019-12897-1