ZILHÃO, João. The stylistically Paleolithic petroglyphs of the Côa valley (Portugal) are of Paleolithic age. A refutation of their "direct dating" to recent times. Trabalhos de Antropologia e Etnologia, [S. l.], v. 35, n. 4, 2020. Disponível em: http://84.247.136.72/ojsletrasX/index.php/tae/article/view/9551. Acesso em: 29 jul. 2025.