You can do simple searches using this form:

Type	Originator	Title	Date
	Crane,R & Fletcher,L	Cave Nature and Culture	2016
		Katalog Dogadanja	2016
	Gligan, M	Parcul National Retezat	2016
	Bozic,V	Povijest prosirivanja uskih prolaza u spiljama i jamama	2016
	Bozic,V	Razvoj rasvjete za Speleoloske Potrebe	2016
	Crisan,F (ed)	Retezat National Park	2016
	Gannon,P	Rock Trails of South Wales	2016
	Reed,C	Tareni Colliery	2016
	Rieuwerts,J.H & Wolstenholme	The Castleton Mines	2016
	Buckley,A	The Great County Adit	2016
	Bozanic,J	U Kamenu Svjetlo	2016