@article {1181,
	title = { Separation of two sibling species of Formica L. ants by a behavioural choice test based on brood discrimination.},
	journal = {Mem. Zool.},
	volume = {48},
	year = {1994},
	pages = {237-249},
	author = {Rosengren, R. and Chautems, D. and Cherix, D. and Fortelius, W. and Keller, L.}
}
