Schwartzkopf-Genswein, K. S., , J. M. Stookey, , A. M. de Passillé, and , J. Rushen. "Comparison of hot-iron and freeze branding on cortisol levels and pain sensitivity in beef cattle." Canadian Journal of Animal Science 77/3 (1997): 369-374.

Schwartzkopf-Genswein, K. S., , J. M. Stookey, , A. M. de Passillé, and , J. Rushen. "Comparison of hot-iron and freeze branding on cortisol levels and pain sensitivity in beef cattle." Canadian Journal of Animal Science 77/3 (1997): 369-374.