1. Induction of parthenocarpic growth of apple fruits with gibberellins A3 and A4;Bukovac;Botanical Gazette,1963
2. The effects of bearing on the ultrastructure of stigmas and styles of Cox's Orange Pippin flowers;Buszard;Acta Horticulturae,1981
3. Fruit-setting of apples using gibberellic acid;Davison;Nature (London),1960
4. Induction of parthenocarpy in the apple with gibberellin and the effects of supplementary auxin application;Dennis;Proceedings of the American Society for Horticultural Science,1962
5. The effect of distance from pollinizer varieties on the fruit set on trees in plum and apple orchards;Free;Journal of Horticultural Science,1962