TY - BOOK AU - Harvey,J. ED - String theory and quantum gravity : ED - International Atomic Energy Agency ED - United Nations Educational, Scientific and Cultural Organization TI - Proceedings of the Trieste Spring School and Workshop ICTP, Trietse, Italy April 15 - 26 , 1991 / SN - 9810207743 PY - 1992/// CY - Singapore : PB - World Scientific, KW - Quantum gravity KW - String models N1 - Includes bibliographical references ER -