@book {1091,
	title = {Catalogue of Palaearctic Coleoptera - Pselaphinae},
	series = {Catalogue of Palaearctic Coleoptera. Hydrophiloidea - Staphylinoidea 2 vols. Revised and Updated Edition},
	volume = {2.1},
	year = {2015},
	publisher = {Brill Books},
	organization = {Brill Books},
	chapter = {360-453},
	author = {Schulke, M. and Smetana, A.},
	editor = {L{\"o}bl, I. and L{\"o}bl, D.}
}
@article {799,
	title = {First purposive study of beetles (Coleoptera) from endogean environments in Bulgaria: collection sites and preliminary results},
	journal = {Biodiversity JournalBiodiversity Journal},
	volume = {6},
	number = {1},
	year = {2015},
	pages = {327{\textendash}340},
	author = {Bekchiev, R. and Gu{\'e}orguiev, B.}
}
