Flexible Diff-ing in a Collaborative Writing System.

Christine Neuwirth Ravinder Chandhok David Kaufer Paul Erion James H. Morris Dale Miller Flexible Diff-ing in a Collaborative Writing System. 147-154 1992 CSCW http://doi.acm.org/10.1145/143457.143473 db/conf/cscw/cscw1992.html#NeuwirthCKEMM92