@article {1072,
	title = {Genetic differentiation of disjunct populations of the ants Formica aquilonia and Formica lugubris in Europe},
	journal = {Insectes Sociaux},
	volume = {39},
	year = {1992},
	pages = {15-29.},
	author = {Pamilo, P. and Chautems, D. and Cherix, D.}
}
@article {883,
	title = {The allocation of foragers in red wood ants.},
	journal = {Ecological Entomology},
	volume = {17},
	year = {1992},
	pages = {114{\textendash}120},
	author = {Gordon, D. M. and Rosengren, R. and Pamilo, P.}
}
