@article {887,
	title = {The oxygen consumption of submerged Formica queens (Hymenoptera, Formicidae) as related to habitat and hydrochoric transport. },
	journal = {Ann. Zool. Fennici},
	volume = {50},
	year = {1984},
	pages = {76-80},
	author = {Gyllenberg, G. and Pamilo, P.}
}
@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.}
}
