@article {879,
	title = {Male size dimorphism and alternative reproductive tactics in Formica exsecta ants (Hymenoptera;Formicidae).},
	journal = {Ann. Zool. Fennici},
	volume = {24},
	year = {1987},
	pages = {45-54},
	author = {Fortelius, W. and Pamilo, P. and Rosengren, R. and Sundstr{\"o}m, L.}
}
@article {878,
	title = {Mating behavior in the polygynous/polydomous wood ant Formica aquilonia.},
	journal = {Ann. Zool. Fennici },
	volume = {42},
	year = {2005},
	pages = {213-224.},
	author = {Fortelius, W.}
}
