James, J., Slater, F. M., Vaughan, I. P., Young, K. A., Cable, J., (2015). Oecologia 178(1), 309-316. Springer Berlin, Heidelberg, Germany. English language
Slater, F. M., (2001). Entomologist's Gazette 52(3), 189-193. Gem Publishing Company, Wallingford, UK. English language