Early Dutch and English voyages to Spitsbergen in the seventeenth century including Hessel Gerritsz "Histoire du pays nommé Spitsberghe," 1613 and Jacob Segersz van der Brugge "Journael of Dagh register," Amsterdam, 1634 - Conway, William Martin, Sir, 1856-1937.; Brugge, Jacob Segersz van der, fl. 1634.; De Villiers, John Abraham Jacob, Sir, 1863-1931.; Soulsby, Basil Harrington, 1864-1933.; Gerritsz., Hessel, 1581?-1632. (Ashgate, 2010)