Said, I., S. Rodríguez, M. Berkhli, P. Cózar, and A. Gómez-Herguedas. 2010. “Environmental parameters of a coral assemblage from the Akerchi Formation (Carboniferous), Adarouch Area, central Morocco”. Journal of Iberian Geology 36, nº 1:: 7-19. https://revistas.ucm.es/index.php/JIGE/article/view/JIGE1010120007A