@book{183982,
	author = {Hajnal, A. and Hamburg, P.},
	title = {Set theory},
	publisher = {Cambridge University Press},
	year = {1999.},
	series = {London Mathematical Society student texts},
	address = {Cambridge},
	edition = {1st English ed.},
	note = {Originally published in Hungarian as Halmazeimélet, 1983.}
}