1. E. OAKESHOTT, The Sword in the Age of Chivalry, London, 1981.
2. M. PRESTWICK, The Three Edwards, New York, 1980.
3. E. OAKESHOTT, Records of the Medieval Sword, Boydell Press, Woodbridge, 1991.
4. Id., certificate, 1982, by courtesy of the owner, Mr. K. KLINGBEIL.
5. BAM Reports Nos 6.3/3666, 1986, 6.3/1990, 1.1/7244, 1990.