Evaluation of reference genes for real-time PCR studies of brazilian somalis sheep infected by gastrointestinal nematodes - Zaros, Lilian Giotto; Coutinho, Luiz Lehmann; Sider, Lúcia Helena; Medeiros, Henrique Rocha de; Neves, Maria Rosalba Moreira das; Benevenuti, Camila Loures; Navarro, Andrine Maria do Carmo; Vieira, Luiz da Silva (Genetics and Molecular Biology, 2010)