7Hansford K A Kennedy, J. P. Relationship between the rate of change in. fibre diameter and staple strength[J]. Proc. Aust. Soci. Anita. Prod, 1988,17 : 415.
8Atkins K D. Genetic Differences Among Merino Blood Lines From NSW Wether Comparisons [J]. Wool Tech. Sheep Breed,1995,43:1-14.