Sibello-Hernández, MSc. Rita, Dra. María Letizia-Cozzella, Lic. Mario Mariani, Dra. Nadia Cogliati, Dr. Sandro Spezia, and Dr. Enzo Trivellone. 2015. “Analytical Method for the Isotopic Characterization of Soils”. Revista Cubana De Química 26 (1):47-54. https://cubanaquimica.uo.edu.cu/index.php/cq/article/view/309.