Authors: Visser, EK van Reenen, CG Hopster, H Schilder, MBH Knaap, JH Barneveld, A Blokhuis, HJ

Citation: Ek. Visser et al., Quantifying aspects of young horses' temperament: consistency of behavioural variables, APPL ANIM B, 74(4), 2001, pp. 241-258

Authors: Visser, EK Beersma, DGM Daan, S

Citation: Ek. Visser et al., Melatonin suppression by light in humans is maximal when the nasal part ofthe retina is illuminated, J BIOL RHYT, 14(2), 1999, pp. 116-121