}
\references{
Paradis, E. (2007) A Bit-Level Coding Scheme for Nucleotides.
- \url{http://pbil.univ-lyon1.fr/R/ape/misc/BitLevelCodingScheme_20April2007.pdf}
+ \url{http://ape.mpl.ird.fr/misc/BitLevelCodingScheme_20April2007.pdf}
}
\author{Emmanuel Paradis \email{Emmanuel.Paradis@mpl.ird.fr}}
\seealso{