Title: Inference of divergence times as a statistical inverse problem
Author: Steven N. Evans and Don Ringe and Tandy Warnow
pub: PDF
Url: http://www.stat.berkeley.edu/users/evans/660.pdf
Date: April  2004
Abstract:  Dating of divergence times in historical linguistics is an
instance of a statistical inverse problem, and many of the issues that
complicate the proper treatment of other inverse problems are also
present there.