@book{4744,
	author = {International Astronomical Union Symposium (Copernicus Symposium) and Longair, M. S., ed. and International Astronomical Union},
	title = {Confrontation of cosmological theories with observational data},
	publisher = {D. Reidel Publishing},
	year = {1974},
	series = {IAU Symposium; no. 63},
	address = {Dordrecht}
}