A. Gradela, M. Roncoletta, Érica da S. C. Morani, C. R. Esper, and P. H. Franceschini, “Insulin-like growth factor-binding proteins and follicular dominance in Bos taurus indicus pure and crossed cows”, Braz. J. Vet. Res. Anim. Sci., vol. 35, no. 5, pp. 218-220, Jan. 1998.