T.  Aho, Kuitunen, M., Suhonen, J., Jäntti, A., and Hakkari, T., ?Reproductive success of European treecreepers, Certhia familiaris, lower in territories with wood ants. ?, Ecology, vol. 80, pp. 998-1007, 1999.

A.  Jäntti, Suorsa, P., Hakkarainen, A., Sorvari, J., Huhta, E., and Kuitunen, M., ?Within territory abundance of red wood ants Formica rufa is associated with the body condition of nestlings in the European treecreeper Certhia familiaris.?, J. Avian Biology , vol. 38, pp. 619-624, 2007.