Prolonged mating in prairie voles (Microtus ochrogaster) increases the likelihood of ovulation and embryo numberv. 60756–763
Roberts, R. L., Wolf, K. N., Sprangel, M. E., Rall, William F., and Wildt, David E. 1999. "Prolonged mating in prairie voles (Microtus ochrogaster) increases the likelihood of ovulation and embryo number." Biology of Reproduction, 60 756–763.