Castorina, Francesca, and Umberto Masi. “COMPARISON OF Sr ISOTOPIC RATIOS FROM TWO SOILS NEAR RAVENNA (ITALY) USING AQUA REGIA AND TWO-STEP SEQUENTIAL EXTRACTS”. EQA - International Journal of Environmental Quality 4, no. 4 (January 1, 2010): 7–14. Accessed May 3, 2024. https://eqa.unibo.it/article/view/3796.