Pedersen, J. M. (2016) “Daniel Hopkins: Peter Thonning and Denmark’s Guinea Commission - A Study in Nineteenth-Century African Colonial Geography. Leiden, 2012”., Historisk Tidsskrift, 116(1). Tilgængelig hos: https://tidsskrift.dk/historisktidsskrift/article/view/56831 (Set: 5 december 2025).