Magalhães, A. F., Tozzi, A. M. G. de A., Santos, C. C. and Magalhães, E. G. (2010) “Chemical indexes calculated for 8,11,13-trienabietane diterpenoids isolated from Swartzia species”, Eclética Química, 35(3), pp. 169–177. doi: 10.26850/1678-4618eqj.v35.3.2010.p169-177.