id	keyword
gc-83	badenian
gc-83	rocks
gc-83	petroleum
gc-83	samples
gc-83	sediments
gc-83	source
gc-83	matter
gc-83	column
gc-83	krndija
gc-83	research
gc-83	basin
gc-83	data
gc-83	croatia
gc-83	bukova
gc-83	glava
gc-83	content
gc-83	pannonian
gc-83	fig
gc-83	signifi