Ortiz-Urquiza, A., Fernandez-Escobar, R., Ortiz-Urquiza, A., Prado, M., & Rapoport, H. (2008). Nitrogen status influence on olive tree flower quality and ovule longevity. Environmental and Experimental Botany, 64(2), pp. 113-119. doi:10.1016/j.envexpbot.2008.04.007

Ortiz-Urquiza, Almudena, R. Fernandez-Escobar, A. Ortiz-Urquiza, M. Prado, and H.F Rapoport. "Nitrogen Status Influence On Olive Tree Flower Quality and Ovule Longevity." Environmental and Experimental Botany 64, no. 2 (2008): 113-119.

Ortiz-Urquiza, Almudena, et al. "Nitrogen Status Influence On Olive Tree Flower Quality and Ovule Longevity." Environmental and Experimental Botany 64.2 (2008): 113-119.