Kilpeläinen, J., Punttila, P., Finér, L., Niemelä, P., Domisch, T., Jurgensen, M. F., … Sundström, L. (2008). Distribution of ant species and mounds (Formica) in different-aged managed spruce stands in eastern Finland. Journal of Applied Entomology, 132(4), 315-325. https://doi.org/10.1111/j.1439-0418.2007.01244.x