Bolaños-Carriel, Carlos, et al. “Diversity of Endophytic Bacteria from Citrus and Inga Trees in the Coffee Agro-Ecosystem and Fluctuations by Location, Shade Management and Season”. The Journal of Agriculture of the University of Puerto Rico, vol. 101, no. 2, Oct. 2017, pp. 165-84, doi:10.46429/jaupr.v101i2.15788.