@article {89,
	title = {Aper{\c c}u sur la composition, l{\textquoteright}origine et la formation de la faune cavernicole de la Stara planina occidentale (Bulgarie)},
	journal = {International Journal of Speleology},
	volume = {9},
	year = {1978},
	month = {1978},
	pages = {197-220},
	author = {Beron, P.}
}
