John T. Appleby: England Without Richard 1189-1199. London, G. Bell and Sons, 1965. viii + 248 s. 30 sh. - Samme: The Troubled Reign of King Stephen. London, G. Bell and Sons, 1969. x + 218 s. 42 sh. - Lund, Niels (Historisk Tidsskrift, 1971)