@article {458,
	title = {Distribution of mound-building ant species (Formica spp., Hymenoptera) in Finland: preliminary results of a national survey},
	journal = {Annales Zoologici Fennici},
	volume = {46},
	year = {2009},
	pages = {1-15},
	keywords = {Aculeata, Formicidae},
	author = {Punttila, P. and Kilpel{\"a}inen, J.}
}
@article {453,
	title = {Forest stand structure, site type and distribution of ant mounds in boreal forests in Finland in the 1950s},
	journal = {Annales Zoologici Fennici},
	year = {2005},
	pages = {243-258},
	keywords = {Aculeata, Formicidae},
	author = {Kilpel{\"a}inen, J. and Punttila, P. and Sundstr{\"o}m, L. and Niemel{\"a}, P. and Fin{\'e}r, L.}
}
@article {451,
	title = {The impact of wood ants (Hymenoptera: Formicidae) on the structure of invertebrate community on mountain birch (Betula pubescens ssp. czerepanovii)},
	journal = {Annales Zoologici Fennici},
	volume = {41},
	year = {2004},
	pages = {429-446},
	keywords = {Aculeata, Formicidae},
	author = {Punttila, P. and Niemel{\"a}, P. and Karhu, K.}
}
@article {435,
	title = {Ant communities in fragments of old-growth taiga and managed surroundings},
	journal = {Annales Zoologici Fennici},
	volume = {31},
	year = {1991},
	pages = {131-144},
	keywords = {Aculeata, Formicidae},
	author = {Punttila, P. and Haila, Y. and Niemel{\"a}, J. and Pajunen, T.}
}
