@article {1157,
	title = {Foraging strategy of wood ants (Formica rufa group). II. Nocturnal orientation and diel periodicity.},
	journal = {Acta Zoologica Fennica},
	volume = {150},
	year = {1977},
	pages = {1-30},
	author = {Rosengren, R.}
}
@article {1156,
	title = {Foraging strategy of wood ants (Formica rufa group). I. Age polyethism and topographic traditions},
	journal = {Acta Zoologica Fennica},
	volume = {149},
	year = {1977},
	pages = {1-30},
	author = {Rosengren, R.}
}
@article {1155,
	title = {Route fidelity, visual memory and recruitment behavior in foraging wood ants of the genus Formica (Hymenoptera, Formicidae).},
	journal = {Acta Zoologica Fennica},
	volume = {133},
	year = {1971},
	pages = {1-105},
	author = {Rosengren, R.}
}
