@article {2234,
	title = {Die Nematinen Finnlands III (Hymenoptera, Tenthredinidae) Gattung Pachynematus Konow},
	journal = {Notulae Entomologicae},
	volume = {54},
	year = {1974},
	pages = {65-80},
	author = {H{\'e}llen, W.}
}
@article {1535,
	title = {F{\"o}r Finlands fauna nya Blacus-arter (Hymenoptera, Braconidae).},
	journal = {Notulae Entomologicae},
	volume = {54},
	year = {1974},
	pages = {16},
	author = {H{\'e}llen, W.}
}
@article {1534,
	title = {Die Mymariden Finnlands (Hymenoptera: Chalcidoidea).},
	journal = {Fauna Fennica},
	volume = {25},
	year = {1974},
	pages = {1-31},
	author = {H{\'e}llen, W.}
}
