Sezgin Ergin Sezgin & Eillis G Eillis 
Superstrings, Unified Theories And Cosmology 1988 – Proceeings Of The 1988 Summer Workshop On High Energy Physics And Cosmology [PDF ebook] 

The ICTP has been holding a Summer Workshop in High Energy Physics and Cosmology since 1981. The primary goal of these workshops is to bring together active physicists from around the world, and to provide a platform where the frontier developments in the field are presented by leading workers. The atmosphere for the workshop was active and stimulating and each area was represented by leading physicists in the field.