@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.}
}
@book {376,
	title = {Sahapisti{\"a}iset 4. Havupisti{\"a}iset (Diprionidae).},
	series = {Maatalous- ja mets{\"a}el{\"a}intieteen laitos. Julkaisuja},
	volume = {10},
	year = {1987},
	publisher = {Helsingin Yliopisto},
	organization = {Helsingin Yliopisto},
	keywords = {Diprionidae, Symphyta},
	author = {Viitasaari, M.}
}
