V. J. Belinelo; G. T. Reis; G. M. Stefani; D. L. Ferreira-Alves; D. Piló-Veloso. Synthesis of 6a,7b-dihydroxyvouacapan-17b-oic acid derivatives. Part IV: mannich base derivatives and its activities on the electrically stimulated Guinea-pig ileum preparation. Journal of the Brazilian Chemical Society. 2002, s. 830–837. Dostupné online. DOI10.1590/S0103-50532002000600016.
scielo.br
V. J. Belinelo; G. T. Reis; G. M. Stefani; D. L. Ferreira-Alves; D. Piló-Veloso. Synthesis of 6a,7b-dihydroxyvouacapan-17b-oic acid derivatives. Part IV: mannich base derivatives and its activities on the electrically stimulated Guinea-pig ileum preparation. Journal of the Brazilian Chemical Society. 2002, s. 830–837. Dostupné online. DOI10.1590/S0103-50532002000600016.