Miele, Alberto, et al. “Effect of Calcium Cyanamide on Bud Burst, Bud Fertility Yield, and on the Quality of Cabernet Franc Grapes”. Pesquisa Agropecuaria Brasileira, vol. 17, no. 3, Apr. 2014, pp. 393-8, doi:10.1590/S1678-3921.pab1982.v17.15657.