WASET
    F. Fernandes and  C. Poleto,  Concentrations and History of Heavy Metals in Sediment Cores: Geochemistry and Geochronology Using 210Pb.   journal   = {International Journal of Geological and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2016, vol. 114(6). 701 - 704
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/10004898.