Online Editing, Mark-Up Models, and the Workplace Lives of Editors and Writers
http://www.ieeexplore.ieee.org/iel1/47/8794/00387775.pdf
  peer-reviewed

Farkas, David K. and Steven E. Poltrock
IEEE Transactions on Professional Communication
1995

Abstract:

Despite the fact that most editing is still performed on paper, there are compelling reasons to begin marking copy on the computer.