@book{1996,
	author = {Lopez, Alan D. },
	title = {Demographic trends in the European Region :},
	publisher = {World Health Organization - Regional Office for Europe,},
	year = {1984.},
	series = {WHO Regional Publications, European Series No. 17},
	address = {Copenhagen :},
	url = {https://apps.who.int/iris/bitstream/handle/10665/272878/9289011084-eng.pdf?sequence=1&isAllowed=y}
}