@article {21,
	title = {Phenology and activity of the Staphylinidae (Coleoptera: Staphylinidae) from the central part of the Danube Plain},
	journal = {Izvestiia na Muzeite v Severozapadna Bulgariia},
	volume = {14 },
	year = {1988},
	pages = {187-202},
	author = {Raichev, I. M.}
}
@article {2,
	title = {Study on the fauna of some subfamilies from the family Staphylinidae (Coleoptera) from the valley of the Blagoevgradska Bistrica River., pp. 91-98. In: Fauna of southwestern Bulgaria. Part 2},
	journal = {Bulgarian Academy of Sciences, Sofia},
	year = {1988},
	author = {Vasilev, I. B. and Sabeva, S. and Raichev, I. M.}
}
