Mc Kisack M. The Fourteenth Century 1307–1399. Oxford, 1959, P. 147.

Ibidem. P. 146, 439, 440 etc.

Le Patourel J. Edward III and the Kingdom of France // History. V. XLIII. N 149, 1958; The Plantagenet Dominions // History. V. 50. N 170. 1965; The King and the Princes in Fourteenth Century France // Europe in the Late… L., 1965; The Origins of the War // The Hundred Years War. Ed. K. Fowler. London. New York, 1971.