@book {2840,
	title = {Die Goldwespen Mitteleuropas. Biologie {\textendash} Lebensr{\"a}ume {\textendash} Artenportr{\"a}ts. Eugen Ulmer KG. Gugler GmbH. 254 s},
	year = {2020},
	author = {Wiesbauer, H. and Rosa, P. and Zettel, H.}
}
@article {2114,
	title = { Distribution, biology and habitat of the rare European osmiine bee species Osmia (Melanosmia) pilicornis (Hymenoptera, Megachilidae, Osmiini)},
	journal = {Journal of Hymenoptera Research},
	volume = {52},
	year = {2016},
	pages = {1-36},
	author = {Prosi, R. and Wiesbauer, H. and M{\"u}ller, A.}
}
