Manninen, M., Honkavaara, M., Jauhiainen, L., Nykänen, A. and Heikkilä, A.-M. (2011) “Effects of grass-red clover silage digestibility and concentrate protein concentration on performance, carcass value, eating quality and economy of finishing Hereford bulls reared in cold conditions”, Agricultural and Food Science, 20(2), pp. 151–168. doi: 10.2137/145960611797215691.