If you use PhEVER, please cite:
For the database:
Leonor Palmeira, Simon Penel, Vincent Lotteau, Chantal Rabourdin-Combe and Christian Gautier.
PhEVER: a database for the global exploration of virus host evolutionary relationships
. Nucleic Acids Research, Vol. 39(Suppl 1):D569-D575, 2011.
More details on the method:
Simon Penel, Anne-Muriel Arigon, Jean-François Dufayard, Anne-Sophie Sertier, Vincent Daubin, Laurent Duret, Manolo Gouy and Guy Perrière.
Databases of homologous gene families for comparative genomics
. BMC Bioinformatics, 10(Suppl 6):S3, 2009.
Here is also a
short report
on this paper (in french).