1. HOMSKY, S. (1954). Observations on the floral biology of the olive and its effect on fruitfulness.Thesis, Faculty of Agriculture (Rehovot), Hebrew University of Jerusalem, Israel, (Hebrew).
2. MOLINARI, O. C. and NICOLEA, H. G. (1947).Tratado general de olivicultura. Libreria El Atieno, Buenos Aires, pp. 491.
3. MORETTINI, A. and PULSELLI, A. (1953). L’Azione del vento nel trasporto del polline dell’olivo.Annali della Sperimentazione Agraria. (N.S.), Rome.