D. Congram e D. Wolfe Steadman, «Distinguished guests or agents of ingérence: foreign participation in Spanish Civil War grave excavations», Complutum, vol. 19, fasc. 2, pp. 161–173, dic. 2008, Consultato: lug. 11, 2026. Disponibile su: https://revistas.ucm.es/index.php/CMPL/article/view/CMPL0808220161A