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-Ia-Neuve, Belgium, 10–13 October 1983

Carbon Dioxide: Current Views and Developments in Energy/Climate Research 2nd Course of the International School of Climatology, Ettore Majorana Centre for Scientific Culture, Erice, Italy, July 16–26, 1982