Miqueloto, Aquidauana, et al. “Physiological, Physicochemical and Mineral Attributes Associated With the Occurrence of Bitter Pit in Apples”. Pesquisa Agropecuaria Brasileira, vol. 46, no. 7, Sept. 2011, pp. 689-96, doi:10.1590/S1678-3921.pab2011.v46.10326.