1. Alderman, D. C. and Lantz, H. L., Apple breeding. 1. Inheritance and statistical studies of the fruits of crossbred seedlings with Antonowka parentage. Proc. Amer. Soc. Hort. Sci. 36 (1938): 279–283.
2. Bishop, C. J., A study of male parental influence in crosses with the Northern Spy apple. Proc. Amer. Soc. Hort. Sci. 57 (1951): 165–168.
3. Brown, A. G., The inheritance of mildew resistance in progenies of the cultivated apple. Euphytica 8 (1959): 81–88.
4. Crane, M. B. and Lawrence, W. J. C., Genetical studies in cultivated apples. J. Genet. 28 (1933): 265–296.
5. Davis, M. B., Blair, D. S. and Spangelo, L. P. S., Apple breeding at the Central Experimental Farm, Ottawa, Canada, 1920–1951. Proc. Amer. Soc. Hort. Sci. 63 (1954): 243–250.