The articles of David C. Nilsen include "Earth: 2300" (along with Tom Peters) in issue #31, "Lone Wolf" in #33, "Three Blind Mice" in #37, and "Macrocombat" in #41. Unfortunately, David has only granted me permission to host a few of his articles, so you'll have to read the rest in _Challenge_. Check Sources for a list of places that might sell them.