Fowler, H. G. 1977. “Some Factors Influencing Colony Spacing and Survival in the Grass-Cutting Ant Acromyrmex Landolti Fracticornis (Forel) (Formicidae: Attini) in Paraguay”. Revista De Biología Tropical 25 (1):89–99. https://revistas.ucr.ac.cr/index.php/rbt/article/view/25870.