@article {1217,
	title = {Ant-aphid interaction and territorial dynamics of wood ants},
	journal = {Memorabilia Zool.},
	volume = {48},
	year = {1994},
	pages = {251-259},
	author = {Veps{\"a}l{\"a}inen, K. and Savolainen, R.}
}
@article {863,
	title = {Role of food supply in structuring a population of Formica ants.},
	journal = {Journal of Animal Ecology },
	volume = {63},
	year = {1994},
	pages = { 756-764},
	author = {Deslippe, R. J. and Savolainen, R.}
}
