@article {16,
	title = {Systematic position, species composition and distribution of the family Xantholinus Berthold, 1827 (Coleoptera: Staphylinidae) in Bulgaria},
	journal = {Izvestiia na Muzeite v Severozapadna Bulgariia},
	volume = {24: },
	year = {1996},
	pages = {247-252},
	author = {Raichev, I. M.}
}
@article {15,
	title = {New data concerning the distribution of Oxiporus rufus L. [!] (Coleoptera, Oxyporidae) in Bulgaria [in Bulgarian, English summary].},
	journal = {Izvestiia na Muzeite v Severozapadna Bulgariia},
	volume = {23},
	year = {1995},
	pages = {497-500},
	author = {Raichev, I. M.}
}
@article {17,
	title = {Species composition of the complex Gabrius Curius [sic], 1829, Paragabrius Coiffaii, 1963 (Coleoptera: Staphylinidae) in Bulgaria},
	journal = {Izvestiia na Muzeite v Severozapadna Bulgariia},
	volume = {19},
	year = {1992},
	pages = {83-90},
	author = {Raichev, I. M.}
}
@article {18,
	title = {An investigation into the species composition of the Staphylinidae fauna (Coleoptera: Staphylinidae) on the island of Persina},
	journal = {Izvestiia na Muzeite v Severozapadna Bulgariia},
	volume = {18},
	year = {1992},
	pages = {143-151},
	author = {Raichev, I. M.}
}
@article {19,
	title = {Variety of species of the Philonthus Curtis genus, 1829 (Coleoptera: Staphylinidae) in Bulgaria},
	journal = {Izvestiia na Muzeite v Severozapadna Bulgariia},
	volume = {17},
	year = {1991},
	pages = {63-77},
	author = {Raichev, I. M.}
}
@article {20,
	title = {Composition of the Quedius Stephens, 1832 (Coleoptera: Staphylinidae) in Bulgaria},
	journal = {Izvestiia na Muzeite v Severozapadna Bulgariia},
	volume = {16},
	year = {1990},
	pages = {225-239},
	author = {Raichev, I. M.}
}
@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 {24,
	title = {Subfamily of the Staphylininae (Coleoptera, Staphylinidae) in the region of the middle north Bulgaria },
	journal = {Izvestiia na Muzeite v Severozapadna Bulgariia},
	volume = {10},
	year = {1985},
	pages = {241-255},
	author = {Raichev, I. M.}
}
@article {8,
	title = {More about the study of the Staphylinidi of tribus Staphylinini Coiff. and tribus Quedini Ganglb.(Coleoptera, Staphylinidae) in the region of central north Bulgaria },
	journal = {Izvestiia na Muzeite v Severozapadna Bulgariia},
	volume = {9},
	year = {1984},
	pages = {255-260},
	author = {Raichev, I. M.}
}
@article {3,
	title = {Zoogeographical study of Coleoptera, Staphylinidae s. str. in the central parts of the Danube plain},
	journal = {Izvestiia na Muzeite v Severozapadna Bulgariia},
	volume = {15},
	year = {1989},
	pages = {243-259},
	author = {Raichev, I. M.}
}
@article {5,
	title = {To the investigation of the Staphylinidae of the tribe Philonthini Coiffait (Coleoptera Staphylinidae) from central north Bulgaria },
	journal = {Izvestiia na Muzeite v Severozapadna Bulgariia},
	volume = {7},
	year = {1982},
	pages = {253-260},
	author = {Raichev, I. M.}
}
