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), 176. Hentet fra https://tidsskrift.dk/historiejyskesamling/article/view/37821