Alternate Heroes
Gregory Benford & Martin Harry Greenberg
What Might Have Been (2)
The New Hugo Winners 1983-1985
Isaac Asimov & Octavia E Butler & Connie Willis & Greg Bear & David Brin & Martin Harry Greenberg
Time Warps
Rickard Nass & Rhonda Nass & Isaac Asimov & Martin Harry Greenberg & Charles G. Waugh