Junior, João Guilherme Casagrande, et al. “Influence of Shading on the Carbohydrates and Phenols in Cattley Guava Cuttin”. Pesquisa Agropecuaria Brasileira, vol. 34, no. 12, Dec. 1999, pp. 2219-23, doi:10.1590/S1678-3921.pab1999.v34.5569.