@book{53423,
	author = {Couperus, Louis,},
	title = {Extaze: Een Boek van Geluk},
	publisher = {Project Gutenberg,},
	year = {2004},
	address = {Salt Lake City, UT :},
	note = {Wikipedia page about this book: https://en.wikipedia.org/wiki/Ecstasy:_A_Study_of_Happiness Wikipedia page about this book: https://nl.wikipedia.org/wiki/Extaze._Een_boek_van_geluk},
	url = {https://www.gutenberg.org/ebooks/12003}
}