@book {328,
	title = {Contribution to the knowledge of Omaliinae of the Balkans (Coleoptera, Staphylinidae)},
	series = {Advances in the studies of the fauna of the Balkan Peninsula. Papers dedicated to the memory of Guido Nonveiller. Monograph No. 22},
	year = {2008},
	pages = {564 },
	publisher = { Institute for Nature Conservation of Serbia},
	organization = { Institute for Nature Conservation of Serbia},
	chapter = {397-416},
	address = {Belgrade},
	author = {Zanetti, A. and Pavi{\'c}evi{\'c}, D. and Zerche, L.},
	editor = {Pavi{\'c}evi{\'c}, D. and Perreau, M.}
}
@book {332,
	title = {Monographie der Pal{\"a}arktischen Coryphiini (Coleoptera, Staphylinidae, Omaliinae)},
	year = {1990},
	pages = { 413 },
	publisher = {Akademie der Landwirtschaftswissenschaften der Deutschen Demokratischen Republik},
	organization = {Akademie der Landwirtschaftswissenschaften der Deutschen Demokratischen Republik},
	address = {Berlin},
	author = {Zerche, L.}
}
@book {258,
	title = {Biodiversity of the Srebarna Biosphere Reserve. Coleoptera},
	series = {Biodiversity of the Srebarna Biosphere Reserve. Checklist and bibliography},
	year = {1998},
	pages = {130 },
	publisher = {Context \& Pensoft},
	organization = {Context \& Pensoft},
	address = {Sofia},
	author = {Kodzhabashev, N. and Penev, L.}
}
@book {251,
	title = {Faunistik der mitteleurop{\"a}ischen K{\"a}fer. Vol. 9: Staphylinidae, 1. Teil, Micropeplinae bis Euaesthetinae},
	year = {1963},
	pages = {412},
	publisher = {A. Feyel},
	organization = {A. Feyel},
	address = {{\"U}berlingen-Bodensee.},
	author = {Horion, A.}
}
@book {252,
	title = {Faunistik der mitteleurop{\"a}ischen K{\"a}fer. Vol. 10: Staphylinidae, 2. Teil, Paederinae bis Staphylininae},
	year = {1965},
	pages = {335 },
	publisher = {A. Feyel},
	organization = {A. Feyel},
	address = {{\"U}berlingen-Bodensee},
	author = {Horion, A.}
}
@book {246,
	title = {Fauna Carpelimus of the Old World (Coleoptera: Staphylinidaae) Monografiya.},
	year = {2015},
	pages = {414},
	publisher = {Smolenskiy Gosudarstvennyy Universitet},
	organization = {Smolenskiy Gosudarstvennyy Universitet},
	address = {Smolensk},
	author = {Gildenkov, M. Y.}
}
@book {207,
	title = {Die Verbreitung der K{\"a}fer Deutschlands: Tatsachen und Folgerungen},
	year = {1938},
	pages = {146},
	publisher = {Privately published},
	organization = {Privately published},
	address = {Sch{\"o}nebeck},
	author = {Borchert, W.}
}
@book {184,
	title = {Die K{\"a}fer Mitteleuropas. Band 4. Staphylinidae (exklusive Aleocharinae, Pselaphinae und Scydmaeninae). 2. Auflage.},
	year = {2011},
	pages = {560 },
	publisher = {Spektrum Akademischer Verlag},
	organization = {Spektrum Akademischer Verlag},
	address = {Heidelberg},
	author = {Assing, V. and Sch{\"u}lke, M.},
	editor = {Assing, V. and Sch{\"u}lke, M.}
}
@book {128,
	title = {Soil and cave invertebrates from the village Gintsi area},
	series = {Speleological Studies of Caves in Godech Municipality},
	year = {2016},
	month = {2016},
	pages = {116},
	publisher = {Association of Speleoclubs in Sofia},
	organization = {Association of Speleoclubs in Sofia},
	address = {Sofia},
	isbn = {ISBN 978-619-90659-1-4},
	author = {Kostova, R. and Lazarov, S. and Bekchiev, R. and Goranov, S. and Simov, N. and Beshkov, S.},
	editor = {Toshkova, V. and Tachev, I.}
}
@book {136,
	title = {Catalogue of Palaearctic Coleoptera. Vol. 2. Hydrophiloidea - Histeroidea - Staphylinoidea.},
	year = {2004},
	month = {2004},
	pages = {942},
	publisher = {Apollo Books},
	organization = {Apollo Books},
	address = {Stenstrup},
	author = {L{\"o}bl, I. and Smetana, A.},
	editor = {L{\"o}bl, I. and Smetana, A.}
}
@book {137,
	title = {Faunistik der mitteleuropaischen Kafer. Unter Mitarbeit zahlreicher Koleopterologen. Vol. 2. Palpicornia - Staphylinoidea (ausser Staphylinidae)},
	year = {1949},
	month = {1949},
	pages = {388},
	publisher = {Vittorio Klostermann},
	organization = {Vittorio Klostermann},
	address = {Frankfurt am Main.},
	author = {Machulka, V.},
	editor = {Horion, A.}
}
@book {144,
	title = {Coleoptera. Fam. Pselaphidae},
	series = {Genera insectorum. Fasc. 64.},
	year = {1908},
	month = {1908},
	pages = {1-487},
	publisher = {V. Verteneuil \& L. Desmet},
	organization = {V. Verteneuil \& L. Desmet},
	address = {Bruxelles},
	author = {Raffray, A.},
	editor = {Wytsman, P.}
}
@book {146,
	title = {Pselaphidae},
	series = {Coleopterorum Catalogus, Pars 27},
	year = {1911},
	month = {1911},
	pages = {1-222},
	publisher = {W. Junk},
	organization = {W. Junk},
	address = {Berlin},
	author = {Raffray, A.},
	editor = {Schenkling, S.}
}
@book {162,
	title = {Catalogus Coleopterorum regionis palaearcticae},
	volume = {Vol. 1, Pars 4},
	year = {1925},
	month = {1925},
	publisher = {Albert Winkler},
	organization = {Albert Winkler},
	address = {Wien},
	author = {Winkler, A.}
}
@book {92,
	title = {Caves and Speleology in Bulgaria},
	year = {2006},
	month = {2006},
	pages = {600},
	publisher = {Pensoft Publishers, BFS \& NMNH},
	organization = {Pensoft Publishers, BFS \& NMNH},
	address = {Sofia},
	isbn = {954-642-241-X},
	author = {Beron, P. and Daaliev, T. and Jalov, A.}
}
@book {90,
	title = {Cave fauna of Bulgaria},
	year = {2015},
	month = {2015},
	pages = {436},
	publisher = {East-West},
	organization = {East-West},
	address = {Sofia},
	isbn = {978-619-152-712-0},
	author = {Beron, P.}
}
@book {108,
	title = {Die K{\"a}fer von Mitteleuropa. Die K{\"a}fer der {\"o}sterreichisch-ungarischen Monarchie, Deutschlands, der Schweiz, sowie des franz{\"o}sischen und italienischen Alpengebietes. Vol. 2, Familienreihe Staphylinoidea, I. Theil: Staphylinidae, Pselaphidae},
	year = {1895},
	month = {1895},
	pages = {881},
	publisher = {Carl Gerold{\textquoteright}s Sohn},
	organization = {Carl Gerold{\textquoteright}s Sohn},
	address = {Vienna},
	author = {Ganglbauer, L.}
}
@book {115,
	title = {Catalogue of the troglobitic Pselaphinae (Coleoptera, Staphylinidae) of the Balkan Peninsula, with a key to genera},
	series = {Advances in the studies of the fauna of the Balkan Peninsula. Papers dedicated to G. Nonveiller},
	volume = {Monograph No. 22},
	year = {2008},
	month = {2008},
	pages = {564},
	publisher = {Institute for Nature Conservation of Serbia},
	organization = {Institute for Nature Conservation of Serbia},
	address = {Belgrade},
	author = {Hlav{\'a}{\v c}, P. and Ozimec, R. and Pavi{\'c}evi{\'c}, D.},
	editor = {Pavi{\'c}evi{\'c}, D. and Perreau, M.}
}
@book {111,
	title = {Catalogus Coleopterorum Europae et Caucasi. Editio tertia},
	year = {1883},
	month = {1883},
	pages = {228},
	publisher = {Libraria Nicolai, Berolini; E. Janson, Londini; L. Buquet, Parisiis.},
	organization = {Libraria Nicolai, Berolini; E. Janson, Londini; L. Buquet, Parisiis.},
	author = {Heyden, L. von and Reitter, E. and Weise, J.}
}
@book {112,
	title = {Catalogus Coleopterorum Europae, Caucasi et Armeniae rossicae},
	year = {1891},
	month = {1891},
	pages = {420},
	publisher = {R. Friedl{\"a}nder \& Sohn},
	organization = {R. Friedl{\"a}nder \& Sohn},
	address = {Berlin},
	author = {Heyden, L. von and Reitter, E. and Weise, J.}
}
