A comprehensive evolutionary classification of proteins encoded in complete eukaryotic genomes
Koonin, Fedorova, Jackson, Jacobs, Krylov, Makarova, Mazumder Raja, Mekhedov, Nikolskaya, Rao B, Rogozin, Smirnov Sergei, Sorokin, Sverdlov, Vasudevan Sona, Wolf, Yin, Natale