Don D'Ammassa

changewar n.	1985 D. D’Ammassa Andre Norton in Lan’s Lantern (#16) Mar. 29/1 ‘Long Live Lord Kor’ is a changewar story, with the protagonist battling efforts to change the past of his world.
changewar n.	2001 D. D’Ammassa in Science Fiction Chronicle Oct. 45/2 Anderson also wrote one of the better ‘changewar’ series, The Time Patrol.
matter transmitter n.	1998 D. D’Ammassa Critical Mass in Science Fiction Chronicle June 39/1 (review of John Barnes’ Earth Made of Glass) The human race is rapidly reuniting after a diaspora that left colonies of genuinely ethnic diversity as well as a number of artificially created ones scattered through the universe. The discovery of the springer, a matter transmitter, has made it possible to reunite these diverse worlds.