Hawerroth, Fernando José, et al. “Reduction of Winter Pruning and Fruit Production Increase in ’Hosui’ Pears by Prohexadione Calcium Use”. Pesquisa Agropecuaria Brasileira, vol. 47, no. 7, Aug. 2012, pp. 941-9, doi:10.1590/S1678-3921.pab2012.v47.12115.