L. F. ARISTIZÁBAL-A., P. S. BAKER, J. OROZCO-H., and B. CHAVES-C., “Parasitism of Cephalonomia stephanoderis Betrem on populations of Hypothenemus hampei (Ferrari) at infestation low levels in the field”, Rev. Colomb. Entomol., vol. 23, no. 2, pp. 157–164, Dec. 1997.