Ilsøe, H. 1967. List and Analysis of State Papers, Foreign Series, Elizabeth I, Preserved in the Public Record Office. Vol. I: August 1589-June 1590. Ed. by R. B. Wernham. London, Her Majesty’s Stationery Office, 1964. VIII+ 562 s. 150 sh. Historisk Tidsskrift. 12, (jan. 1967).