Tubelis, A. and Salibe, A. A. (1992) “Relationship between production of ’Baianinha’ sweet orange trees, age and monthly rainfalls at the plateau of Botucatu, Brazil”, Pesquisa Agropecuaria Brasileira, 27(5), pp. 703–707. doi: 10.1590/S1678-3921.pab1992.v27.3701.