Drummond, A. J., and Rambaut, A. (2007)
BEAST: Bayesian evolutionary analysis by sampling trees.
BMC Evolutionary Biology, 7(1), 214.
Lanciotti, R. S., Gubler, D. J., and Trent, D. W. (1997)
Molecular evolution and phylogeny of dengue-4 viruses.
Journal of General Virology, 78(9), 2279-2286.