The pupa-carrying test as a taxonomic tool in the Formica rufa group. – Teoksessa: Howse, P.E. & Clement, J.-L. (toim.), Biosystematics of social insects. Systematics Assoc. Spec. 19: 263-281.

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith