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2by MUÑOZ,JESUS, MUÑOZ,C R, DEL LLANO,T E, RAMOS DE,L P, FLORES,C G, ALVARADO,F E, MORENO,M A
Published 1998Digital revistaSCIELO -
3by Pardey,A.J., Moreno,M.A., Ortega,M.C., Mendez,B., Rivas,A.B., Moya,S.A., Villagra,D., Lutz,M.
Published 2003Digital revistaSCIELO