T. Geel, and Th.B. Roep. 1998. “Oligocene to Middle Miocene Basin Development in the Velez Rubio Corridor- Espufi.A (Internal-External Zone Boundary; Eastern Betic Cordilleras, SE Spain)”. Netherlands Journal of Geosciences 77 (January):39-66. https://njgjournal.nl/index.php/njg/article/view/12195.