@article {2190,
	title = {Gynandromorphic individuals of  Neodiprion sertifer (Hymenoptera, Diprionidae).},
	journal = { Entomologica Fennica},
	volume = {3},
	year = {1992},
	pages = {149-153},
	author = {Heli{\"o}vaara, K. and V{\"a}is{\"a}nen, R. and Varama, M. and Viitasaari, M.}
}
@article {391,
	title = { Gynadromorphic Individuals of Neodiprion sertifer (Hymenoptera, Diprionidae)},
	journal = {Entomologica Fennica},
	volume = {3},
	year = {1992},
	pages = { 149-153},
	keywords = {Diprionidae, Neodiprion, Neodiprion sertifer, Symohyta},
	author = {Heli{\"o}vaara, K. and V{\"a}is{\"a}nen, M. and Varama, M. and Viitasaari, M.}
}
@inbook {379,
	title = {Siricidae (horntails)},
	booktitle = { Bark and wood boring insects in living trees in Europe : a synthesis},
	year = {2004},
	pages = { 529-534},
	keywords = {Siricidae, Symphyta},
	author = {Viitasaari, M. and Heli{\"o}vaara, K.}
}
