Karl van Campen
Pseudonym of John W. Campbell, Jr.
5 works in English-language magazines
| Date | Page | Type | Title | Magazine |
|---|---|---|---|---|
| December 1934 | 154|154.1 | Essay | Letter (Astounding Stories, December 1934): Challenge | Astounding Stories, December 1934 |
| December 1934 | 41 | Short Fiction | The Irrelevant | Astounding Stories, December 1934 |
| February 1935 | 156|156.3 | Essay | Letter (Astounding Stories, February 1935): And "The Irrelevant" Replies | Astounding Stories, February 1935 |
| March 1935 | 155 | Essay | Letter (Astounding Stories, March 1935): The Defense Is Ready! | Astounding Stories, March 1935 |
| May 1935 | 155 | Essay | Letter (Astounding Stories, May 1935): Mr. van Kampen Says: | Astounding Stories, May 1935 |