[comp.windows.x] Reference Article Sought

skk@sparc.COM (02/13/91)

I am looking for:

Extending X for Double-Buffering,Multi-buffering, and Stereo,
Version 3.3 or later, MIT Consortium, public review copy, January, 1990
-by Jeffery Friedberg, Larry Seiler, Jeff Vroom

Is this significantly different from version 3.2 
available on the R4 tape?