WASET
    Elena Castillo-López and  Raúl Pereda and  Julio Manuel de Luis and  Rubén Pérez and  Felipe Piña,  Heavy Metals Estimation in Coastal Areas Using Remote Sensing, Field Sampling and Classical and Robust Statistic.   journal   = {International Journal of Geological and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2017, vol. 129(9). 834 - 838
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10007955.