@inbook {1173,
	title = {The interaction between red wood ants, Cinara aphids and pines. A ghost of mutuliasm past?},
	booktitle = {Teoksessa: Huxley, C.R. \& Cutler, D.F. (toim.), Ant-plant interactions: 80-91. Oxford University Press, Oxford.},
	year = {1991},
	author = {Rosengren, R. and Sundstr{\"o}m, L.}
}
