Sách chuyên khảo Lỗ châu mai

  • Friar, Stephen (2003), The Sutton Companion to Castles, Stroud: Sutton Publishing, ISBN 978-0-7509-3994-2 
  • Jones, Peter; Renn, Derek (1982), “The military effectiveness of Arrow Loops: Some experiments at White Castle”, Château Gaillard: Études de Castellologie médiévale (Centre de Recherches Archéologiques Médiévales) IX–X: 445–456