@book{12084,
	author = {Gumański, Leon,},
	title = {To Be or Not to Be? Is that the Question? :},
	publisher = {Brill,},
	year = {1999.},
	series = {Poznań Studies in the Philosophy of the Sciences and the Humanities ;},
	address = {Leiden ;},
	url = {http://dx.doi.org/10.1163/9789004457669}
}