[Study of hybridization in four species of ground squirrels (spermophilus: Rodentia, Sciuridae) by molecular genetic methods].
Ermakov OA, Surin VL, Titov SV, Tagiev AF, Luk'ianenko AV, Formozov NA. [Study of hybridization in four species of ground squirrels (spermophilus: Rodentia, Sciuridae) by molecular genetic methods]. Genetika. 2002 Jul; 38(7):950-64.