John Kopf
2 works in English-language magazines
| Date | Page | Type | Title | Magazine |
|---|---|---|---|---|
| March 1982 | 170 | Essay | Letter (Analog, March 29 1982) | Analog Science Fiction/Science Fact, March 29, 1982 |
| May 2004 | 139|139.1 | Essay | Letter (Analog, May 2004) | Analog Science Fiction and Fact, May 2004 |