M. . Turrero, “Pore water chemistry of a Paleogene continental mudrock in Spain and a Jurassic marine mudrock in Switzerland: Sampling methods and geochemical interpretation”, JIGE, vol. 32, no. 2, pp. 233–258, Jan. 2006, Accessed: Mar. 28, 2025. Available: https://revistas.ucm.es/index.php/JIGE/article/view/JIGE0606220233A