1. Surgery may not be preferable to rubber rings for tail docking and castration of lambs;Barnett;Australian Veterinary Journal,1988
2. Castration of lambs: comparison of the rubber-ring ligature and crushing techniques;Barrowman;Empire Journal of Experimental Agriculture,1953
3. Castration and docking of lambs: use of the rubber-ring ligature technique at different ages;Barrowman;Empire Journal of Experimental Agriculture,1954
4. Pain measurement: an overview;Chapman;Pain,1985
5. Neuromata in docked lambs' tails;French;Research in Veterinary Science,1992