Kilany,, O., Yehia, T., Abou Rayya, M., Hassan, H. (2002). 'MORPHOLOGICAL AND PHYSILOGICAL STUDIES ON FLOWERING, POLLINATION AND FRUITING OF “PICUAL” OLIVE TREES II- EFFECT OF SELF, OPEN, AND CROSS POLLINATION ON FRUIT SET, FRUIT DROP AND FRUIT CHARACTERISTICS', Journal of Plant Production, 27(1), pp. 493-501. doi: 10.21608/jpp.2002.252962