J. J. A. Hartevelt (1971) “Stratigraphic position of the limestones and conglomerates around the Marimana granodiorite, Central Pyrenees, Spain”, Netherlands Journal of Geosciences, pp. 691-698. Available at: https://njgjournal.nl/index.php/njg/article/view/14869 (Accessed: 31August2026).