Isaac Asimov's Science Fiction Magazine: April 1983 Cover by Mark Yankus.

Featured stories:
Profile: James Tiptree, Jr. - by Charles Platt;
"Plague" by Lewis Shiner
"Cryptic" by Jack McDevitt
"Short Timer" by John Morressy
"$Call Link4(Cathy)" by Cherie Wilkerson
"Negation Demonstrated / Demonstration Negated" by Bradley Strickland
"The Blue Background" by Brian Aldiss
"The Sidon in the Mirror" by Connie Willis (cover novella; nominated for both Hugo & Nebula awards.)