Serrano, João, Rui Reis, Teresa Fonseca, Rui Paulo, Samuel Honório, e Marco Batista. «Pre-Competitive Anxiety: A Comparative Study Between “Under 12” and Senior Teams in Football (Ansiedad Pre-Competitiva: Estudio Comparativo Entre Equipos De Fútbol Infantil Y Fútbol Senior)». Retos 36 (julho 1, 2019): 318–326. Acedido novembro 8, 2026. https://www.revistaretos.org/index.php/retos/article/view/67129.