@inbook {1221,
	title = {The taxonomy oft he Formica rufa group: Chaos before order},
	booktitle = {Teoksessa:  Howse, P.E. \& Clement, J.-L. (toim.), Biosystematics of social insects. Systematics Assoc. Spec. 19: 27-36.},
	year = {1981},
	author = {Veps{\"a}l{\"a}inen, K. and Pisarski, B.}
}
