@article {2864,
	title = {Piha-ampiaisen (Vespula vulgaris (L.)) suuren maapes{\"a}n yksil{\"o}m{\"a}{\"a}r{\"a} (Hymenoptera, Vespidae).},
	journal = {Sahlbergia},
	volume = {26},
	year = {2021},
	pages = {12{\textendash}14.},
	author = {Martikainen, P.}
}
