Valdez-Ramírez, C.; Levy-Tacher, S. I.; León-Martínez, N. S.; Navarrete-Gutiérrez, D. A.; Ortiz-Ceballos, Ángel I. Chemical and Biological Soil Changes Caused by Pteridium Aquilinum (L.) Kuhn in Areas of Influence of the Reserve of the Biosphere of Calakmul, Campeche. terra 2020, 38, 289-300.