@book{43097,
	author = {United Nations Economic Commission for Europe},
	title = {The Gas Situation in the ECE Region Around the Year 1990},
	publisher = {ELSEVIER,},
	year = {1979},
	note = {<strong>Off-Campus Access:</strong> Athens ID and Password Required},
	url = {https://www.sciencedirect.com/science/book/9780080244655}
}