}}
\references{
Paradis, E. (2010) Time-dependent speciation and extinction from
- phylogenies: a least squares approach. (under revision)
- %\emph{Evolution}, \bold{59}, 1--12.
+ phylogenies: a least squares approach. \emph{Evolution} (in press)
+ %, \bold{59}, 1--12.
}
\author{Emmanuel Paradis}
\seealso{