Proceedings of the International Symposium Georges Lemaître.
The Big bang and Georges Lemaître : proceedings of a symposium in honour of G. Lemaître fifty years after his initiation of big-bang cosmology, Louvain-la-Neuve, Belgium, 10-13 October 1983. ISBN 9027718482. Published by Reidel in 1984. Publication and catalogue information, links to buy online and reader comments.