@article {28920,
	title = {Panel 2: Denning  - control mechanisms, site selection and physiology },
	volume = {New Series No. 23},
	year = {1972},
	note = {In: Herrero, S. (ed.) Bears - their biology and management.},
	pages = {133-137},
	institution = {IUCN, Natural Resource Publication},
	address = {Morgues, Switzerland},
	author = {Folk, G. E.}
}
