1. The role of budscales in the morphogenesis and dormancy of the apple fruit bud;Abbott,1970
2. Flowering and alternate bearing;Davis,1957
3. A new look at the process of fruit bud formation in apple;Luckwill,1974
4. Nukleinsäuremetabolismus und Blutenknospenentwicklung bei Apfel (Malus domestica);Schmidt;Arch. Gartenbau,1978
5. Factors governing fruit bud formation. VIII. The seasonal elongation growth of apple varieties on some vegetative rootstocks and its possible relation to fruit bud formation;Swarbrick;J. Pomol. Hortic. Sci.,1929