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2. The influence of the social structure of a Zebu herd on the manifestation of signs of oestrus;Gutierrez;World Review of Animal Production,1993
3. Sexual behaviour in female domestic mammals;Hurnik;Veterinary Clinics of North America,1987
4. Métodos Estadísticos: Un Enfoque Interdisciplinario;Infante,1984
5. Reproductive performance of Zebu cattle in Mexico 1: Sexual behaviour and seasonal influence on estrous cyclicity;Lamothe-Zavaleta;Theriogenology,1991