J. F. Aguirre-Medina, D. M. Moroyoqui-Ovilla, A. Mendoza-López, J. Cadena-Iñiguez, C. H. Avendaño-Arrazate, and J. F. Aguirre-Cadena, “Endomycorrhizic fungi and nitrogen-fixing bacteria inoculated in coffee nurseries”., Agron. Mesoam., vol. 22, no. 1, pp. 71–80, Jun. 2011.