L. H. Buch and E. Norberg
Acta Agriculturae Scandinavica, Section A - Animal Sciences 58 ( 1 ): 5 - 9 , 2008
E. Norberg, I. R. Korsgaard, K. H. M. N. Sloth and P. Lovendahl
Acta Agriculturae Scandinavica, Section A - Animal Sciences 58 ( 4 ): 165 - 169 , 2008
E. Norberg, P. Madsen and J. Pedersen
Acta Agriculturae Scandinavica, Section A - Animal Sciences 59 ( 4 ): 197 - 203 , 2009