M. Hernandez, M. Lopez, D. Rojas, A. Iglesias, R. Necoechea, A. Hem�ndez, J. Ram�rez and M. Spilsbury
International Journal of Zoological Research 2 ( 4 ): 362 - 368 , 2006
I. Escobar- Ibarra, L. Mayagoitia, C. Gonzalez- Rebeles, R. Ramirez- Necoechea, D. Mota and M. Alonso- Spilsbury
International Journal of Zoological Research 2 ( 3 ): 213 - 225 , 2006