@article {3,
	title = {Review of the Nearctic Claustropyga Hippa, Vilkamaa \& Mohrig (Diptera, Sciaridae) with the description of three new species},
	journal = {Zootaxa},
	volume = {1552},
	number = {1},
	year = {2007},
	pages = {53{\textendash}68},
	author = {PEKKA VILKAMAA and Heikki Hippa}
}
@article {3,
	title = {New species and records of Keilbachia Mohrig (Diptera, Sciaridae) from the Oriental region},
	journal = {Zootaxa},
	volume = {1622},
	number = {1},
	year = {2007},
	pages = {57{\textendash}68},
	author = {Heikki Hippa and PEKKA VILKAMAA}
}
@article {4,
	title = {Black fungus-gnats in deciduous forest habitat in northern Europe, with the description of Bradysia arcula sp. n. (Diptera: Sciaridae)},
	journal = { Entomologica Fennica},
	volume = {18},
	year = {2007},
	author = {PEKKA VILKAMAA and Jukka Salmela and Heikki Hippa}
}
@article {11,
	title = {A review of the sciarids species of the genus Camptochaeta Hippa et Vilkamaa, 1994 (Diptera: Sciaridae) of the Altai fauna},
	journal = {Far Eastern Entomologist },
	volume = {171},
	number = {1044},
	year = {2007},
	pages = {1-9},
	author = {L. A. Komarova},
	editor = {H. Hippa and PEKKA VILKAMAA}
}
