Wium Olesen, N. (1998) “Nathaniel Hong: Sparks of Resistance. The Illegal Press in German Occupied Denmark April 1940 - August 1943. (Odense Universitetsforlag, 1996). XI + 308 s”., Historie/Jyske Samlinger, (1), s. 176. Tilgængelig hos: https://tidsskrift.dk/historiejyskesamling/article/view/37821 (Set: 6 december 2025).