David Bohm got it started, but Dialogue as a technique for talking together has reached more widely.
On Dialogue
by David Bohm, Lee Nichol (Editor)
published 1996
From Debate to Dialogue: Using the Understanding Process to Transform Our Conversations
by Deborah L. Flick, Ph.D.
published 1998
Dialogue: Rediscover the Transforming Power of Conversation
by Linda Ellinor (Contributor), Glenna Gerard
published 1998
Dialogue and the Art of Thinking Together: A Pioneering Approach to Communicating in Business and in Life
by William Isaacs, William Issacs, Peter M. Senge
published 1999
The Magic of Dialogue: Transforming Conflict into Cooperation
by Daniel Yankelovich
published 2001