A. P. de Souza, S. Leonel, and A. C. da Silva, “Basal temperature and thermal sum in phenological phases of nectarine and peach cultivars”, PAB, vol. 46, no. 12, pp. 1588–1596, Feb. 2012, doi: 10.1590/S1678-3921.pab2011.v46.11279.