Roslyng-Jensen, P. (1996). Nathaniel Hong: Sparks of Resistance. The Illegal Press in German Occupied Denmark April 1940 - August 1943, Odense Universitetsforlag 1996, 308 s., ill., 300 . Historisk Tidsskrift, 16, 430–437. https://doi.org/10.7146/ht.v16i0.53799