@article {1236,
	title = {Muutamia ennen Savosta tuntemattomia Mehil{\"a}islajeja},
	journal = {Meddel. Soc. Fauna Flora Fennica},
	volume = {17},
	year = {1890},
	pages = {55-57},
	author = {Westerlund, A.}
}
@article {1235,
	title = {Suuria ampiaisen (Vespa) pesi{\"a}},
	journal = {Luonnon Yst{\"a}v{\"a}},
	volume = {2},
	year = {1898},
	pages = {54},
	author = {Westerlund, A.}
}
@article {1209,
	title = {Hymenopteroloogisia havainnoita Laatokan pohjois-rannikolta v. 1891},
	journal = {Acta soc. Fauna et Flora Fennica},
	volume = {9},
	year = {1892},
	pages = {1-30},
	author = {Westerlund, A.}
}
@article {1208,
	title = {[Hymenoptera fossoria]},
	journal = {Meddel. Soc. Fauna Flora Fennica},
	volume = {22},
	year = {1896},
	pages = {27-29},
	author = {Westerlund, A.}
}
