== Bibliografi ==
* ''<span lang="EN-US">Order of Battle: Hitler's Werewolves</span>''<span lang="EN-US"> (1972)</span>
* ''<span lang="EN-US">Sleeper Agent</span>''<span lang="EN-US"> (1975)</span>
* ''<span lang="EN-US">The Haigerloch Project</span>''<span lang="EN-US"> (1978)</span>
* ''<span lang="EN-US">The Watchdogs of Abaddon</span>''<span lang="EN-US"> (1979)</span>
* ''<span lang="EN-US">The Marcus Device</span>''<span lang="EN-US"> (1980)</span>
* ''<span lang="EN-US">Hour of Vengeance</span>''<span lang="EN-US"> (ca. 1981) (skuespil)</span>
* ''<span lang="EN-US">The Tombstone Cipher</span>''<span lang="EN-US"> (1983)</span>
* ''<span lang="EN-US">Eva</span>''<span lang="EN-US"> (1985)</span>
* ''<span lang="EN-US">V-3</span>''<span lang="EN-US"> (1985)</span>
* ''<span lang="EN-US">Code Name: Grand Guignol</span>''<span lang="EN-US"> (1987)</span>
* ''<span lang="EN-US">Melchior a la Carte</span>''<span lang="EN-US"> (2009) (antologi)</span>
Litteratur Sprog