File:Villesen, P., Mueller, U.G. et al. 2004. Evolution of ant-cultivar specialization and cultivar switching.pdf

Summary
Villesen, P., Mueller, U.G., Schultz, T.R., Adams, R.M.M., Bouck, A.C. 2004. Evolution of ant-cultivar specialization and cultivar switching in Apterostigma fungus-growing ants. Evolution 58(10): 2252–2265.