Assessing cows' welfare: weighing the cow in a milking robot - Pastell, Matti; Takko, Heikki; Gröhn, Hannu; Hautala, Mikko; Poikolainen, V.; Praks, J.; Veermäe, I; Kujala, Minna J.; Ahokas, Jukka (Academic Press, 2006)