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Type	Originator	Title	Date
	Kaisin,F & Pierpont,E	Hydrogeologie des Calcaires de Belg1que	1939
	Julian,M & Nicod,J	Le Karst de Saint Barnabe (Alpes Maritimes)	1969
	Royal Society of South Australia (Trans. 87, 41-62)	Some Geomorphological Problems of the Nullarbor Plain	1963
	Kyrle,G (Prof)	Theoretischen Spelaologie
	Geologists Association, S.Wales Group	Welsh Geological Quarterly Vol.2 No 4