1. BURDON, R. D. (1998): Relative performance values in genetic tests: Alternatives and their properties. Silvae Genet. 47: 1-5.
2. GILMOUR, J. W. and A. NOODERHAVEN (1973): Control of Dothistroma needle blight by low volume aerial application of fungicides. New Zeal. J. For. Sci. 3: 120-136.
3. SNEDECOR, G. W. and W. G. COCHRAN (1967): Statistical Methods, 6th ed. Iowa State Univ. Press, Ames.