Mari Mutt, J. A. “Four New Species of Dicranocentrus and Heteromurus from the State of Mérida, Venezuela (Collembola: Entomobryidae)”. The Journal of Agriculture of the University of Puerto Rico, vol. 67, no. 2, Apr. 1983, pp. 148-64, doi:10.46429/jaupr.v67i2.7703.