T. T. Ross ROSS, T. T., GOODE, L., & LINNERUD, A. C. (1985). EFFECTS OF HIGH AMBIENT-TEMPERATURE ON RESPIRATION RATE, RECTAL TEMPERATURE, FETAL DEVELOPMENT AND THYROID-GLAND ACTIVITY IN TROPICAL AND TEMPERATE BREEDS OF SHEEP. THERIOGENOLOGY, 24(2), 259–269. https://doi.org/10.1016/0093-691X(85)90190-6 Ross, T. T. (1982). The effects of high environmental temperature on fetal development and selected physiological variables in three breeds of sheep. Dissertation Abstracts International. B, Sciences and Engineering, 43(3), 569.