Authors: Yngvesson, J Keeling, LJ

Citation: J. Yngvesson et Lj. Keeling, Body size and fluctuating asymmetry in relation to cannibalistic behaviourin laying hens, ANIM BEHAV, 61, 2001, pp. 609-615

Authors: Gunnarsson, S Yngvesson, J Keeling, LJ Forkman, B

Citation: S. Gunnarsson et al., Rearing without early access to perches impairs the spatial skills of laying hens, APPL ANIM B, 67(3), 2000, pp. 217-228