Barrandeguy, M. E., and M. V. García. “Back to the Future: Evidence of Ancestral Polymorphism in Current Populations of Anadenanthera Colubrina Var. Cebil by Means of Population Graphs”. Plant Science Today, vol. 2, no. 2, Apr. 2015, pp. 65-68, doi:10.14719/pst.2015.2.2.102.