A declaration of the King of Denmark to the Emperour, the King and State of Poland, and His Highness the Elector of Brandenburgh, in relation to the treaty agreed and concluded at the Haghe in Holland, the 21. of May 1659 shewing the trecherousness of the Hollander in that treaty. (London : E. C., 1659)
Reproduction of original in Det Kongelige Bibliotek / The Royal Library (Copenhagen).