1. Plocharski W, Zbroszcyzk J (1992) Fl�ssiges Obst 59:354?358
2. Plocharski W, Zbroszcyzk J (1989) Fruit science reports, Skierniewice, Poland, 16/1:33?50
3. Macheix J-J, Fleuriet A, Billot J (1990) Fruit phenolics. CRC Press, Boca Raton
4. Kaack K, Falk-K�hn B (1992) Tidsskr Pl Avl 96:183?196
5. Razungles A, Ozmianski J, Sapis JC (1989) J Food Sci 54:774?775