@article {371,
	title = {Studies toward a World Catalog of Symphyta (Hymenoptera).},
	journal = {Zootaxa},
	volume = {2254},
	year = {2009},
	pages = {1-96},
	keywords = {Symphyta},
	url = {https://www.researchgate.net/publication/236896278_Studies_toward_a_World_Catalog_of_Symphyta_Hymenoptera},
	author = {Blank, S. M and Taeger, A. and Liston, A. D. and Smith, D. R. and Rasnitsyn, A. P. and Shinohara, A. and Heidemaa, N. and Viitasaari, M.}
}
@article {364,
	title = {An annotated checklist of the sawflies (Hymenoptera, Symphyta) of Estoni},
	journal = {Proceedings of the Estonian Academy of Sciences. Biology. Ecology},
	volume = {47},
	year = {1998},
	pages = {126-147},
	keywords = {Symphyta},
	author = {Viitasaari, M. and Heidemaa, N. and Nuorteva, M. and Zinovjev, A.}
}
@article {362,
	title = {Taxonomy of the Empria hungarica species-group (Hymenoptera, Tenthredinidae) in Northern Europe},
	journal = {Entomologica Fennica},
	volume = {10},
	year = {1999},
	pages = { 95-101},
	keywords = {Allantinae. Empria, Symphyta, Tenthredinidae},
	author = {Heidemaa, N. and Viitasaari, M.}
}
@article {361,
	title = {Parna reseri, a new leaf miner for the fauna of northern Europe (Hymenoptera, Tenthredinidae)},
	journal = {Proceedings of the Estonian Academy of Sciences. Biology. Ecology },
	volume = {46},
	year = {1997},
	pages = {191-192},
	keywords = {Heterarthrinae, Parna, Parna reseri, Symphyta, Tenthredinidae},
	author = {Heidemaa, N. and Viitasaari, M.}
}
@article {360,
	title = {Praia taczanowskii Wankowitz in Andr{\'e} (Hym., Cimbicidae) is repeatedly found in northern Europe},
	journal = {Sawfly News},
	volume = {1},
	year = {1997},
	pages = {11},
	keywords = {Cimbicidae, Praia, Praia taczanowskii, Symphyta},
	author = {Nuorteva, M. and Heidemaa, N. and Viitasaari, M.}
}
