TY - RPRT TI - Exploratory and spatial data analysis (EDA-SDA) for determining regional background levels and anomalies of potentially toxic elements in soils from Catorce-Matehuala, Mexico AU - J.A. Chipres AU - J. Castro-Larragoitia AU - M.G. Monroy PY - 2009 DO - 10.1016/j.apgeochem.2009.04.022 UR - https://pubs.usgs.gov/publication/70140581 ID - 70140581 ER -