Ruy de Pina, Cronica de D. Duarte, (p. 125). Russell (2000:p.182-84). A copy of the treaty of October 17, 1437 is preserved and found in Monumenta Henricina, Vol. VI, p. 211بایگانیشده در ۲۰۲۰-۰۴-۲۴ توسط Wayback Machine
Ruy de Pina, Cronica de D. Duarte, (p. 125). Russell (2000:p.182-84). A copy of the treaty of October 17, 1437 is preserved and found in Monumenta Henricina, Vol. VI, p. 211بایگانیشده در ۲۰۲۰-۰۴-۲۴ توسط Wayback Machine